annotate Modules/_struct.c @ 65105:8bcbdd6730a7

#10034: import readline in longer example.
author Georg Brandl <georg@python.org>
date Wed, 06 Oct 2010 05:08:32 +0000
parents 29ab536cfef6
children 8304bd765bcf
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
48591
1de718a31004 update the struct documentation to refer to bytes
Benjamin Peterson <benjamin@python.org>
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1 /* struct module -- pack values into and (out of) bytes objects */
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2
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3 /* New version supporting byte order, alignment and size options,
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4 character strings, and unsigned numbers */
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5
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6 #define PY_SSIZE_T_CLEAN
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7
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8 #include "Python.h"
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9 #include "structseq.h"
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10 #include "structmember.h"
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11 #include <ctype.h>
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12
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13 static PyTypeObject PyStructType;
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14
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15 /* The translation function for each format character is table driven */
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16 typedef struct _formatdef {
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17 char format;
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18 Py_ssize_t size;
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19 Py_ssize_t alignment;
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20 PyObject* (*unpack)(const char *,
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21 const struct _formatdef *);
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22 int (*pack)(char *, PyObject *,
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23 const struct _formatdef *);
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24 } formatdef;
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25
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26 typedef struct _formatcode {
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27 const struct _formatdef *fmtdef;
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28 Py_ssize_t offset;
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29 Py_ssize_t size;
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30 } formatcode;
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31
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32 /* Struct object interface */
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33
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34 typedef struct {
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35 PyObject_HEAD
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36 Py_ssize_t s_size;
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37 Py_ssize_t s_len;
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38 formatcode *s_codes;
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39 PyObject *s_format;
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40 PyObject *weakreflist; /* List of weak references */
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41 } PyStructObject;
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42
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43
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44 #define PyStruct_Check(op) PyObject_TypeCheck(op, &PyStructType)
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45 #define PyStruct_CheckExact(op) (Py_TYPE(op) == &PyStructType)
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47
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48 /* Exception */
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49
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50 static PyObject *StructError;
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51
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52
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53 /* Define various structs to figure out the alignments of types */
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54
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55
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56 typedef struct { char c; short x; } st_short;
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57 typedef struct { char c; int x; } st_int;
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58 typedef struct { char c; long x; } st_long;
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59 typedef struct { char c; float x; } st_float;
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60 typedef struct { char c; double x; } st_double;
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61 typedef struct { char c; void *x; } st_void_p;
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62
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63 #define SHORT_ALIGN (sizeof(st_short) - sizeof(short))
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64 #define INT_ALIGN (sizeof(st_int) - sizeof(int))
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65 #define LONG_ALIGN (sizeof(st_long) - sizeof(long))
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66 #define FLOAT_ALIGN (sizeof(st_float) - sizeof(float))
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67 #define DOUBLE_ALIGN (sizeof(st_double) - sizeof(double))
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68 #define VOID_P_ALIGN (sizeof(st_void_p) - sizeof(void *))
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69
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70 /* We can't support q and Q in native mode unless the compiler does;
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71 in std mode, they're 8 bytes on all platforms. */
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72 #ifdef HAVE_LONG_LONG
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73 typedef struct { char c; PY_LONG_LONG x; } s_long_long;
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74 #define LONG_LONG_ALIGN (sizeof(s_long_long) - sizeof(PY_LONG_LONG))
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75 #endif
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76
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77 #ifdef HAVE_C99_BOOL
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78 #define BOOL_TYPE _Bool
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79 typedef struct { char c; _Bool x; } s_bool;
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80 #define BOOL_ALIGN (sizeof(s_bool) - sizeof(BOOL_TYPE))
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81 #else
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82 #define BOOL_TYPE char
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83 #define BOOL_ALIGN 0
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84 #endif
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85
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86 #define STRINGIFY(x) #x
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87
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88 #ifdef __powerc
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89 #pragma options align=reset
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90 #endif
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91
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92 /* Helper for integer format codes: converts an arbitrary Python object to a
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93 PyLongObject if possible, otherwise fails. Caller should decref. */
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94
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95 static PyObject *
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96 get_pylong(PyObject *v)
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97 {
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98 assert(v != NULL);
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99 if (!PyLong_Check(v)) {
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100 /* Not an integer; try to use __index__ to convert. */
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101 if (PyIndex_Check(v)) {
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102 v = PyNumber_Index(v);
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103 if (v == NULL)
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104 return NULL;
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105 }
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106 else {
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107 PyErr_SetString(StructError,
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108 "required argument is not an integer");
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109 return NULL;
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110 }
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111 }
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112 else
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113 Py_INCREF(v);
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114
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115 assert(PyLong_Check(v));
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116 return v;
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117 }
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118
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119 /* Helper routine to get a C long and raise the appropriate error if it isn't
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120 one */
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121
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122 static int
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123 get_long(PyObject *v, long *p)
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124 {
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125 long x;
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126
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127 v = get_pylong(v);
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128 if (v == NULL)
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129 return -1;
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130 assert(PyLong_Check(v));
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131 x = PyLong_AsLong(v);
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132 Py_DECREF(v);
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133 if (x == (long)-1 && PyErr_Occurred()) {
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134 if (PyErr_ExceptionMatches(PyExc_OverflowError))
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135 PyErr_SetString(StructError,
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136 "argument out of range");
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137 return -1;
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138 }
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139 *p = x;
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140 return 0;
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141 }
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142
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143
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144 /* Same, but handling unsigned long */
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145
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146 static int
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147 get_ulong(PyObject *v, unsigned long *p)
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148 {
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149 unsigned long x;
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150
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151 v = get_pylong(v);
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152 if (v == NULL)
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153 return -1;
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154 assert(PyLong_Check(v));
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155 x = PyLong_AsUnsignedLong(v);
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156 Py_DECREF(v);
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157 if (x == (unsigned long)-1 && PyErr_Occurred()) {
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158 if (PyErr_ExceptionMatches(PyExc_OverflowError))
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159 PyErr_SetString(StructError,
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160 "argument out of range");
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161 return -1;
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162 }
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163 *p = x;
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164 return 0;
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165 }
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166
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167 #ifdef HAVE_LONG_LONG
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168
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169 /* Same, but handling native long long. */
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170
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171 static int
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172 get_longlong(PyObject *v, PY_LONG_LONG *p)
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173 {
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174 PY_LONG_LONG x;
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175
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176 v = get_pylong(v);
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177 if (v == NULL)
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178 return -1;
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179 assert(PyLong_Check(v));
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180 x = PyLong_AsLongLong(v);
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181 Py_DECREF(v);
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182 if (x == (PY_LONG_LONG)-1 && PyErr_Occurred()) {
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183 if (PyErr_ExceptionMatches(PyExc_OverflowError))
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184 PyErr_SetString(StructError,
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185 "argument out of range");
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186 return -1;
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187 }
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188 *p = x;
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189 return 0;
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190 }
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191
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192 /* Same, but handling native unsigned long long. */
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193
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194 static int
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195 get_ulonglong(PyObject *v, unsigned PY_LONG_LONG *p)
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196 {
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197 unsigned PY_LONG_LONG x;
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198
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199 v = get_pylong(v);
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200 if (v == NULL)
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201 return -1;
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202 assert(PyLong_Check(v));
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203 x = PyLong_AsUnsignedLongLong(v);
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204 Py_DECREF(v);
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205 if (x == (unsigned PY_LONG_LONG)-1 && PyErr_Occurred()) {
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206 if (PyErr_ExceptionMatches(PyExc_OverflowError))
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207 PyErr_SetString(StructError,
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208 "argument out of range");
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209 return -1;
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210 }
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211 *p = x;
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212 return 0;
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213 }
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214
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215 #endif
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216
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217
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218 #define RANGE_ERROR(x, f, flag, mask) return _range_error(f, flag)
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219
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220
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221 /* Floating point helpers */
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222
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223 static PyObject *
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224 unpack_float(const char *p, /* start of 4-byte string */
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225 int le) /* true for little-endian, false for big-endian */
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226 {
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227 double x;
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228
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229 x = _PyFloat_Unpack4((unsigned char *)p, le);
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230 if (x == -1.0 && PyErr_Occurred())
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231 return NULL;
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232 return PyFloat_FromDouble(x);
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233 }
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234
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235 static PyObject *
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236 unpack_double(const char *p, /* start of 8-byte string */
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237 int le) /* true for little-endian, false for big-endian */
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238 {
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239 double x;
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240
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241 x = _PyFloat_Unpack8((unsigned char *)p, le);
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242 if (x == -1.0 && PyErr_Occurred())
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243 return NULL;
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244 return PyFloat_FromDouble(x);
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245 }
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246
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247 /* Helper to format the range error exceptions */
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248 static int
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249 _range_error(const formatdef *f, int is_unsigned)
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250 {
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251 /* ulargest is the largest unsigned value with f->size bytes.
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252 * Note that the simpler:
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253 * ((size_t)1 << (f->size * 8)) - 1
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254 * doesn't work when f->size == sizeof(size_t) because C doesn't
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255 * define what happens when a left shift count is >= the number of
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256 * bits in the integer being shifted; e.g., on some boxes it doesn't
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257 * shift at all when they're equal.
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258 */
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259 const size_t ulargest = (size_t)-1 >> ((SIZEOF_SIZE_T - f->size)*8);
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260 assert(f->size >= 1 && f->size <= SIZEOF_SIZE_T);
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261 if (is_unsigned)
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262 PyErr_Format(StructError,
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263 "'%c' format requires 0 <= number <= %zu",
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264 f->format,
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265 ulargest);
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266 else {
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267 const Py_ssize_t largest = (Py_ssize_t)(ulargest >> 1);
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268 PyErr_Format(StructError,
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269 "'%c' format requires %zd <= number <= %zd",
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270 f->format,
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271 ~ largest,
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272 largest);
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273 }
52249
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274
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275 return -1;
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276 }
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277
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278
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279
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280 /* A large number of small routines follow, with names of the form
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281
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282 [bln][up]_TYPE
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283
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284 [bln] distiguishes among big-endian, little-endian and native.
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285 [pu] distiguishes between pack (to struct) and unpack (from struct).
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286 TYPE is one of char, byte, ubyte, etc.
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287 */
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288
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289 /* Native mode routines. ****************************************************/
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290 /* NOTE:
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291 In all n[up]_<type> routines handling types larger than 1 byte, there is
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292 *no* guarantee that the p pointer is properly aligned for each type,
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293 therefore memcpy is called. An intermediate variable is used to
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294 compensate for big-endian architectures.
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295 Normally both the intermediate variable and the memcpy call will be
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296 skipped by C optimisation in little-endian architectures (gcc >= 2.91
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297 does this). */
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298
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299 static PyObject *
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300 nu_char(const char *p, const formatdef *f)
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301 {
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302 return PyBytes_FromStringAndSize(p, 1);
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303 }
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304
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305 static PyObject *
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306 nu_byte(const char *p, const formatdef *f)
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307 {
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308 return PyLong_FromLong((long) *(signed char *)p);
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309 }
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310
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311 static PyObject *
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312 nu_ubyte(const char *p, const formatdef *f)
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313 {
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314 return PyLong_FromLong((long) *(unsigned char *)p);
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315 }
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316
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317 static PyObject *
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318 nu_short(const char *p, const formatdef *f)
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319 {
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320 short x;
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321 memcpy((char *)&x, p, sizeof x);
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322 return PyLong_FromLong((long)x);
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323 }
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324
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325 static PyObject *
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326 nu_ushort(const char *p, const formatdef *f)
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327 {
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328 unsigned short x;
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329 memcpy((char *)&x, p, sizeof x);
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330 return PyLong_FromLong((long)x);
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331 }
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332
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333 static PyObject *
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334 nu_int(const char *p, const formatdef *f)
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335 {
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336 int x;
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337 memcpy((char *)&x, p, sizeof x);
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338 return PyLong_FromLong((long)x);
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339 }
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340
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341 static PyObject *
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342 nu_uint(const char *p, const formatdef *f)
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343 {
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344 unsigned int x;
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345 memcpy((char *)&x, p, sizeof x);
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346 #if (SIZEOF_LONG > SIZEOF_INT)
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347 return PyLong_FromLong((long)x);
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348 #else
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349 if (x <= ((unsigned int)LONG_MAX))
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350 return PyLong_FromLong((long)x);
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351 return PyLong_FromUnsignedLong((unsigned long)x);
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352 #endif
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353 }
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354
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355 static PyObject *
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356 nu_long(const char *p, const formatdef *f)
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357 {
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358 long x;
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359 memcpy((char *)&x, p, sizeof x);
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360 return PyLong_FromLong(x);
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361 }
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362
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363 static PyObject *
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364 nu_ulong(const char *p, const formatdef *f)
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365 {
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366 unsigned long x;
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367 memcpy((char *)&x, p, sizeof x);
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368 if (x <= LONG_MAX)
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369 return PyLong_FromLong((long)x);
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370 return PyLong_FromUnsignedLong(x);
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371 }
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372
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373 /* Native mode doesn't support q or Q unless the platform C supports
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374 long long (or, on Windows, __int64). */
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375
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376 #ifdef HAVE_LONG_LONG
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377
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378 static PyObject *
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379 nu_longlong(const char *p, const formatdef *f)
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380 {
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381 PY_LONG_LONG x;
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382 memcpy((char *)&x, p, sizeof x);
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383 if (x >= LONG_MIN && x <= LONG_MAX)
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384 return PyLong_FromLong(Py_SAFE_DOWNCAST(x, PY_LONG_LONG, long));
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385 return PyLong_FromLongLong(x);
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386 }
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387
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388 static PyObject *
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389 nu_ulonglong(const char *p, const formatdef *f)
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390 {
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391 unsigned PY_LONG_LONG x;
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392 memcpy((char *)&x, p, sizeof x);
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393 if (x <= LONG_MAX)
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394 return PyLong_FromLong(Py_SAFE_DOWNCAST(x, unsigned PY_LONG_LONG, long));
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395 return PyLong_FromUnsignedLongLong(x);
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396 }
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397
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398 #endif
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399
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400 static PyObject *
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401 nu_bool(const char *p, const formatdef *f)
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402 {
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403 BOOL_TYPE x;
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404 memcpy((char *)&x, p, sizeof x);
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405 return PyBool_FromLong(x != 0);
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406 }
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407
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408
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409 static PyObject *
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410 nu_float(const char *p, const formatdef *f)
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411 {
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412 float x;
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413 memcpy((char *)&x, p, sizeof x);
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414 return PyFloat_FromDouble((double)x);
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415 }
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416
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417 static PyObject *
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418 nu_double(const char *p, const formatdef *f)
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419 {
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420 double x;
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421 memcpy((char *)&x, p, sizeof x);
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422 return PyFloat_FromDouble(x);
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423 }
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424
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425 static PyObject *
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426 nu_void_p(const char *p, const formatdef *f)
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427 {
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428 void *x;
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429 memcpy((char *)&x, p, sizeof x);
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430 return PyLong_FromVoidPtr(x);
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431 }
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432
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433 static int
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434 np_byte(char *p, PyObject *v, const formatdef *f)
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435 {
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436 long x;
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437 if (get_long(v, &x) < 0)
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438 return -1;
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439 if (x < -128 || x > 127){
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440 PyErr_SetString(StructError,
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441 "byte format requires -128 <= number <= 127");
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442 return -1;
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443 }
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444 *p = (char)x;
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445 return 0;
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446 }
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447
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448 static int
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449 np_ubyte(char *p, PyObject *v, const formatdef *f)
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450 {
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451 long x;
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452 if (get_long(v, &x) < 0)
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453 return -1;
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454 if (x < 0 || x > 255){
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455 PyErr_SetString(StructError,
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456 "ubyte format requires 0 <= number <= 255");
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457 return -1;
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458 }
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459 *p = (char)x;
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460 return 0;
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461 }
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462
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463 static int
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464 np_char(char *p, PyObject *v, const formatdef *f)
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465 {
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466 if (PyUnicode_Check(v)) {
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467 v = _PyUnicode_AsDefaultEncodedString(v, NULL);
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468 if (v == NULL)
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469 return -1;
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470 }
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471 if (!PyBytes_Check(v) || PyBytes_Size(v) != 1) {
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472 PyErr_SetString(StructError,
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473 "char format requires bytes or string of length 1");
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474 return -1;
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475 }
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476 *p = *PyBytes_AsString(v);
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477 return 0;
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478 }
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479
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480 static int
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481 np_short(char *p, PyObject *v, const formatdef *f)
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482 {
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483 long x;
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484 short y;
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485 if (get_long(v, &x) < 0)
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486 return -1;
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487 if (x < SHRT_MIN || x > SHRT_MAX){
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488 PyErr_SetString(StructError,
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489 "short format requires " STRINGIFY(SHRT_MIN)
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490 " <= number <= " STRINGIFY(SHRT_MAX));
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491 return -1;
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492 }
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493 y = (short)x;
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494 memcpy(p, (char *)&y, sizeof y);
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495 return 0;
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496 }
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497
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498 static int
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499 np_ushort(char *p, PyObject *v, const formatdef *f)
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500 {
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501 long x;
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502 unsigned short y;
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503 if (get_long(v, &x) < 0)
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504 return -1;
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505 if (x < 0 || x > USHRT_MAX){
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506 PyErr_SetString(StructError,
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507 "ushort format requires 0 <= number <= " STRINGIFY(USHRT_MAX));
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508 return -1;
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509 }
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510 y = (unsigned short)x;
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511 memcpy(p, (char *)&y, sizeof y);
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512 return 0;
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513 }
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514
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515 static int
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diff changeset
516 np_int(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
517 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
518 long x;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
519 int y;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
520 if (get_long(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
521 return -1;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
522 #if (SIZEOF_LONG > SIZEOF_INT)
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
523 if ((x < ((long)INT_MIN)) || (x > ((long)INT_MAX)))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
524 RANGE_ERROR(x, f, 0, -1);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
525 #endif
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
526 y = (int)x;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
527 memcpy(p, (char *)&y, sizeof y);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
528 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
529 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
530
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
531 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
532 np_uint(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
533 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
534 unsigned long x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
535 unsigned int y;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
536 if (get_ulong(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
537 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
538 y = (unsigned int)x;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
539 #if (SIZEOF_LONG > SIZEOF_INT)
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
540 if (x > ((unsigned long)UINT_MAX))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
541 RANGE_ERROR(y, f, 1, -1);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
542 #endif
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
543 memcpy(p, (char *)&y, sizeof y);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
544 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
545 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
546
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
547 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
548 np_long(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
549 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
550 long x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
551 if (get_long(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
552 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
553 memcpy(p, (char *)&x, sizeof x);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
554 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
555 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
556
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
557 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
558 np_ulong(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
559 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
560 unsigned long x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
561 if (get_ulong(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
562 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
563 memcpy(p, (char *)&x, sizeof x);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
564 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
565 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
566
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
567 #ifdef HAVE_LONG_LONG
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
568
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
569 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
570 np_longlong(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
571 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
572 PY_LONG_LONG x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
573 if (get_longlong(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
574 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
575 memcpy(p, (char *)&x, sizeof x);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
576 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
577 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
578
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
579 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
580 np_ulonglong(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
581 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
582 unsigned PY_LONG_LONG x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
583 if (get_ulonglong(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
584 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
585 memcpy(p, (char *)&x, sizeof x);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
586 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
587 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
588 #endif
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
589
40737
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
590
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
591 static int
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
592 np_bool(char *p, PyObject *v, const formatdef *f)
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
593 {
62847
f6266c459156 don't ignore exceptions from PyObject_IsTrue
Benjamin Peterson <benjamin@python.org>
parents: 62314
diff changeset
594 int y;
f6266c459156 don't ignore exceptions from PyObject_IsTrue
Benjamin Peterson <benjamin@python.org>
parents: 62314
diff changeset
595 BOOL_TYPE x;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
596 y = PyObject_IsTrue(v);
62847
f6266c459156 don't ignore exceptions from PyObject_IsTrue
Benjamin Peterson <benjamin@python.org>
parents: 62314
diff changeset
597 if (y < 0)
f6266c459156 don't ignore exceptions from PyObject_IsTrue
Benjamin Peterson <benjamin@python.org>
parents: 62314
diff changeset
598 return -1;
f6266c459156 don't ignore exceptions from PyObject_IsTrue
Benjamin Peterson <benjamin@python.org>
parents: 62314
diff changeset
599 x = y;
f6266c459156 don't ignore exceptions from PyObject_IsTrue
Benjamin Peterson <benjamin@python.org>
parents: 62314
diff changeset
600 memcpy(p, (char *)&x, sizeof x);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
601 return 0;
40737
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
602 }
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
603
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
604 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
605 np_float(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
606 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
607 float x = (float)PyFloat_AsDouble(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
608 if (x == -1 && PyErr_Occurred()) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
609 PyErr_SetString(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
610 "required argument is not a float");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
611 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
612 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
613 memcpy(p, (char *)&x, sizeof x);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
614 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
615 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
616
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
617 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
618 np_double(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
619 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
620 double x = PyFloat_AsDouble(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
621 if (x == -1 && PyErr_Occurred()) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
622 PyErr_SetString(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
623 "required argument is not a float");
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
624 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
625 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
626 memcpy(p, (char *)&x, sizeof(double));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
627 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
628 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
629
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
630 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
631 np_void_p(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
632 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
633 void *x;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
634
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
635 v = get_pylong(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
636 if (v == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
637 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
638 assert(PyLong_Check(v));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
639 x = PyLong_AsVoidPtr(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
640 Py_DECREF(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
641 if (x == NULL && PyErr_Occurred())
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
642 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
643 memcpy(p, (char *)&x, sizeof x);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
644 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
645 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
646
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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diff changeset
647 static formatdef native_table[] = {
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648 {'x', sizeof(char), 0, NULL},
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649 {'b', sizeof(char), 0, nu_byte, np_byte},
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650 {'B', sizeof(char), 0, nu_ubyte, np_ubyte},
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diff changeset
651 {'c', sizeof(char), 0, nu_char, np_char},
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diff changeset
652 {'s', sizeof(char), 0, NULL},
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diff changeset
653 {'p', sizeof(char), 0, NULL},
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654 {'h', sizeof(short), SHORT_ALIGN, nu_short, np_short},
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655 {'H', sizeof(short), SHORT_ALIGN, nu_ushort, np_ushort},
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656 {'i', sizeof(int), INT_ALIGN, nu_int, np_int},
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diff changeset
657 {'I', sizeof(int), INT_ALIGN, nu_uint, np_uint},
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diff changeset
658 {'l', sizeof(long), LONG_ALIGN, nu_long, np_long},
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659 {'L', sizeof(long), LONG_ALIGN, nu_ulong, np_ulong},
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660 #ifdef HAVE_LONG_LONG
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661 {'q', sizeof(PY_LONG_LONG), LONG_LONG_ALIGN, nu_longlong, np_longlong},
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662 {'Q', sizeof(PY_LONG_LONG), LONG_LONG_ALIGN, nu_ulonglong,np_ulonglong},
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663 #endif
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664 {'?', sizeof(BOOL_TYPE), BOOL_ALIGN, nu_bool, np_bool},
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665 {'f', sizeof(float), FLOAT_ALIGN, nu_float, np_float},
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666 {'d', sizeof(double), DOUBLE_ALIGN, nu_double, np_double},
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667 {'P', sizeof(void *), VOID_P_ALIGN, nu_void_p, np_void_p},
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668 {0}
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669 };
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670
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671 /* Big-endian routines. *****************************************************/
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672
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673 static PyObject *
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Thomas Wouters <thomas@python.org>
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674 bu_int(const char *p, const formatdef *f)
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675 {
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676 long x = 0;
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677 Py_ssize_t i = f->size;
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678 const unsigned char *bytes = (const unsigned char *)p;
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679 do {
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680 x = (x<<8) | *bytes++;
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681 } while (--i > 0);
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682 /* Extend the sign bit. */
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683 if (SIZEOF_LONG > f->size)
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684 x |= -(x & (1L << ((8 * f->size) - 1)));
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685 return PyLong_FromLong(x);
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686 }
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Thomas Wouters <thomas@python.org>
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diff changeset
687
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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688 static PyObject *
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Thomas Wouters <thomas@python.org>
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diff changeset
689 bu_uint(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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diff changeset
690 {
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691 unsigned long x = 0;
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692 Py_ssize_t i = f->size;
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693 const unsigned char *bytes = (const unsigned char *)p;
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694 do {
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695 x = (x<<8) | *bytes++;
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696 } while (--i > 0);
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697 if (x <= LONG_MAX)
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diff changeset
698 return PyLong_FromLong((long)x);
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diff changeset
699 return PyLong_FromUnsignedLong(x);
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29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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700 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
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diff changeset
701
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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diff changeset
702 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
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diff changeset
703 bu_longlong(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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diff changeset
704 {
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
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diff changeset
705 #ifdef HAVE_LONG_LONG
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diff changeset
706 PY_LONG_LONG x = 0;
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707 Py_ssize_t i = f->size;
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diff changeset
708 const unsigned char *bytes = (const unsigned char *)p;
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diff changeset
709 do {
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710 x = (x<<8) | *bytes++;
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diff changeset
711 } while (--i > 0);
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diff changeset
712 /* Extend the sign bit. */
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diff changeset
713 if (SIZEOF_LONG_LONG > f->size)
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diff changeset
714 x |= -(x & ((PY_LONG_LONG)1 << ((8 * f->size) - 1)));
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715 if (x >= LONG_MIN && x <= LONG_MAX)
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diff changeset
716 return PyLong_FromLong(Py_SAFE_DOWNCAST(x, PY_LONG_LONG, long));
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diff changeset
717 return PyLong_FromLongLong(x);
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diff changeset
718 #else
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diff changeset
719 return _PyLong_FromByteArray((const unsigned char *)p,
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diff changeset
720 8,
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diff changeset
721 0, /* little-endian */
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diff changeset
722 1 /* signed */);
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diff changeset
723 #endif
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
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diff changeset
724 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
725
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
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diff changeset
726 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
727 bu_ulonglong(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
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diff changeset
728 {
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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parents:
diff changeset
729 #ifdef HAVE_LONG_LONG
61466
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diff changeset
730 unsigned PY_LONG_LONG x = 0;
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diff changeset
731 Py_ssize_t i = f->size;
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diff changeset
732 const unsigned char *bytes = (const unsigned char *)p;
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diff changeset
733 do {
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diff changeset
734 x = (x<<8) | *bytes++;
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diff changeset
735 } while (--i > 0);
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diff changeset
736 if (x <= LONG_MAX)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
737 return PyLong_FromLong(Py_SAFE_DOWNCAST(x, unsigned PY_LONG_LONG, long));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
738 return PyLong_FromUnsignedLongLong(x);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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parents:
diff changeset
739 #else
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diff changeset
740 return _PyLong_FromByteArray((const unsigned char *)p,
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diff changeset
741 8,
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diff changeset
742 0, /* little-endian */
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diff changeset
743 0 /* signed */);
38453
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diff changeset
744 #endif
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
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diff changeset
745 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
746
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
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diff changeset
747 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
748 bu_float(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
749 {
61466
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diff changeset
750 return unpack_float(p, 0);
38453
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diff changeset
751 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
752
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
753 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
754 bu_double(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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parents:
diff changeset
755 {
61466
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diff changeset
756 return unpack_double(p, 0);
38453
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Thomas Wouters <thomas@python.org>
parents:
diff changeset
757 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
758
40737
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diff changeset
759 static PyObject *
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
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diff changeset
760 bu_bool(const char *p, const formatdef *f)
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diff changeset
761 {
61466
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diff changeset
762 char x;
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diff changeset
763 memcpy((char *)&x, p, sizeof x);
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diff changeset
764 return PyBool_FromLong(x != 0);
40737
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
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diff changeset
765 }
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diff changeset
766
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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parents:
diff changeset
767 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
768 bp_int(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
769 {
61466
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diff changeset
770 long x;
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diff changeset
771 Py_ssize_t i;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
772 if (get_long(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
773 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
774 i = f->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
775 if (i != SIZEOF_LONG) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
776 if ((i == 2) && (x < -32768 || x > 32767))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
777 RANGE_ERROR(x, f, 0, 0xffffL);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
778 #if (SIZEOF_LONG != 4)
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
779 else if ((i == 4) && (x < -2147483648L || x > 2147483647L))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
780 RANGE_ERROR(x, f, 0, 0xffffffffL);
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
781 #endif
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
782 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
783 do {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
784 p[--i] = (char)x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
785 x >>= 8;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
786 } while (i > 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
787 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
788 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
789
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
790 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
791 bp_uint(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
792 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
793 unsigned long x;
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parents: 60312
diff changeset
794 Py_ssize_t i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
795 if (get_ulong(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
796 return -1;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
797 i = f->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
798 if (i != SIZEOF_LONG) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
799 unsigned long maxint = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
800 maxint <<= (unsigned long)(i * 8);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
801 if (x >= maxint)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
802 RANGE_ERROR(x, f, 1, maxint - 1);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
803 }
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parents: 60312
diff changeset
804 do {
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
805 p[--i] = (char)x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
806 x >>= 8;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
807 } while (i > 0);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
808 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
809 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
810
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
811 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
812 bp_longlong(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
813 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
814 int res;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
815 v = get_pylong(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
816 if (v == NULL)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
817 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
818 res = _PyLong_AsByteArray((PyLongObject *)v,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
819 (unsigned char *)p,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
820 8,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
821 0, /* little_endian */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
822 1 /* signed */);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
823 Py_DECREF(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
824 return res;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
825 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
826
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
827 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
828 bp_ulonglong(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
829 {
61466
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parents: 60312
diff changeset
830 int res;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
831 v = get_pylong(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
832 if (v == NULL)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
833 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
834 res = _PyLong_AsByteArray((PyLongObject *)v,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
835 (unsigned char *)p,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
836 8,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
837 0, /* little_endian */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
838 0 /* signed */);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
839 Py_DECREF(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
840 return res;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
841 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
842
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
843 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
844 bp_float(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
845 {
61466
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parents: 60312
diff changeset
846 double x = PyFloat_AsDouble(v);
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parents: 60312
diff changeset
847 if (x == -1 && PyErr_Occurred()) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
848 PyErr_SetString(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
849 "required argument is not a float");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
850 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
851 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
852 return _PyFloat_Pack4(x, (unsigned char *)p, 0);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
853 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
854
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
855 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
856 bp_double(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
857 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
858 double x = PyFloat_AsDouble(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
859 if (x == -1 && PyErr_Occurred()) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
860 PyErr_SetString(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
861 "required argument is not a float");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
862 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
863 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
864 return _PyFloat_Pack8(x, (unsigned char *)p, 0);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
865 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
866
40737
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
867 static int
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
868 bp_bool(char *p, PyObject *v, const formatdef *f)
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
869 {
63065
2683333755f3 Issue #9277: Struct module: standard bool packing was incorrect if
Mark Dickinson <dickinsm@gmail.com>
parents: 62847
diff changeset
870 int y;
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
871 y = PyObject_IsTrue(v);
62847
f6266c459156 don't ignore exceptions from PyObject_IsTrue
Benjamin Peterson <benjamin@python.org>
parents: 62314
diff changeset
872 if (y < 0)
f6266c459156 don't ignore exceptions from PyObject_IsTrue
Benjamin Peterson <benjamin@python.org>
parents: 62314
diff changeset
873 return -1;
63065
2683333755f3 Issue #9277: Struct module: standard bool packing was incorrect if
Mark Dickinson <dickinsm@gmail.com>
parents: 62847
diff changeset
874 *p = (char)y;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
875 return 0;
40737
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
876 }
6ebad2a6b990 Merged revisions 53451-53537 via svnmerge from
Thomas Wouters <thomas@python.org>
parents: 40626
diff changeset
877
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
878 static formatdef bigendian_table[] = {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
879 {'x', 1, 0, NULL},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
880 {'b', 1, 0, nu_byte, np_byte},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
881 {'B', 1, 0, nu_ubyte, np_ubyte},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
882 {'c', 1, 0, nu_char, np_char},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
883 {'s', 1, 0, NULL},
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
884 {'p', 1, 0, NULL},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
885 {'h', 2, 0, bu_int, bp_int},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
886 {'H', 2, 0, bu_uint, bp_uint},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
887 {'i', 4, 0, bu_int, bp_int},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
888 {'I', 4, 0, bu_uint, bp_uint},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
889 {'l', 4, 0, bu_int, bp_int},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
890 {'L', 4, 0, bu_uint, bp_uint},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
891 {'q', 8, 0, bu_longlong, bp_longlong},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
892 {'Q', 8, 0, bu_ulonglong, bp_ulonglong},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
893 {'?', 1, 0, bu_bool, bp_bool},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
894 {'f', 4, 0, bu_float, bp_float},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
895 {'d', 8, 0, bu_double, bp_double},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
896 {0}
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
897 };
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
898
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
899 /* Little-endian routines. *****************************************************/
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
900
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
901 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
902 lu_int(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
903 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
904 long x = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
905 Py_ssize_t i = f->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
906 const unsigned char *bytes = (const unsigned char *)p;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
907 do {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
908 x = (x<<8) | bytes[--i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
909 } while (i > 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
910 /* Extend the sign bit. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
911 if (SIZEOF_LONG > f->size)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
912 x |= -(x & (1L << ((8 * f->size) - 1)));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
913 return PyLong_FromLong(x);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
914 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
915
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
916 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
917 lu_uint(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
918 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
919 unsigned long x = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
920 Py_ssize_t i = f->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
921 const unsigned char *bytes = (const unsigned char *)p;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
922 do {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
923 x = (x<<8) | bytes[--i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
924 } while (i > 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
925 if (x <= LONG_MAX)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
926 return PyLong_FromLong((long)x);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
927 return PyLong_FromUnsignedLong((long)x);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
928 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
929
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
930 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
931 lu_longlong(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
932 {
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
933 #ifdef HAVE_LONG_LONG
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
934 PY_LONG_LONG x = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
935 Py_ssize_t i = f->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
936 const unsigned char *bytes = (const unsigned char *)p;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
937 do {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
938 x = (x<<8) | bytes[--i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
939 } while (i > 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
940 /* Extend the sign bit. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
941 if (SIZEOF_LONG_LONG > f->size)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
942 x |= -(x & ((PY_LONG_LONG)1 << ((8 * f->size) - 1)));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
943 if (x >= LONG_MIN && x <= LONG_MAX)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
944 return PyLong_FromLong(Py_SAFE_DOWNCAST(x, PY_LONG_LONG, long));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
945 return PyLong_FromLongLong(x);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
946 #else
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
947 return _PyLong_FromByteArray((const unsigned char *)p,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
948 8,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
949 1, /* little-endian */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
950 1 /* signed */);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
951 #endif
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
952 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
953
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
954 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
955 lu_ulonglong(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
956 {
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
957 #ifdef HAVE_LONG_LONG
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
958 unsigned PY_LONG_LONG x = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
959 Py_ssize_t i = f->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
960 const unsigned char *bytes = (const unsigned char *)p;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
961 do {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
962 x = (x<<8) | bytes[--i];
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
963 } while (i > 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
964 if (x <= LONG_MAX)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
965 return PyLong_FromLong(Py_SAFE_DOWNCAST(x, unsigned PY_LONG_LONG, long));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
966 return PyLong_FromUnsignedLongLong(x);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
967 #else
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
968 return _PyLong_FromByteArray((const unsigned char *)p,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
969 8,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
970 1, /* little-endian */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
971 0 /* signed */);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
972 #endif
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
973 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
974
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
975 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
976 lu_float(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
977 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
978 return unpack_float(p, 1);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
979 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
980
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
981 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
982 lu_double(const char *p, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
983 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
984 return unpack_double(p, 1);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
985 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
986
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
987 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
988 lp_int(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
989 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
990 long x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
991 Py_ssize_t i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
992 if (get_long(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
993 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
994 i = f->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
995 if (i != SIZEOF_LONG) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
996 if ((i == 2) && (x < -32768 || x > 32767))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
997 RANGE_ERROR(x, f, 0, 0xffffL);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
998 #if (SIZEOF_LONG != 4)
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
999 else if ((i == 4) && (x < -2147483648L || x > 2147483647L))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1000 RANGE_ERROR(x, f, 0, 0xffffffffL);
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1001 #endif
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1002 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1003 do {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1004 *p++ = (char)x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1005 x >>= 8;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1006 } while (--i > 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1007 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1008 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1009
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1010 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1011 lp_uint(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1012 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1013 unsigned long x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1014 Py_ssize_t i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1015 if (get_ulong(v, &x) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1016 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1017 i = f->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1018 if (i != SIZEOF_LONG) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1019 unsigned long maxint = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1020 maxint <<= (unsigned long)(i * 8);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1021 if (x >= maxint)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1022 RANGE_ERROR(x, f, 1, maxint - 1);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1023 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1024 do {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1025 *p++ = (char)x;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1026 x >>= 8;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1027 } while (--i > 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1028 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1029 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1030
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1031 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1032 lp_longlong(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1033 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1034 int res;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1035 v = get_pylong(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1036 if (v == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1037 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1038 res = _PyLong_AsByteArray((PyLongObject*)v,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1039 (unsigned char *)p,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1040 8,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1041 1, /* little_endian */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1042 1 /* signed */);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1043 Py_DECREF(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1044 return res;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1045 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1046
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1047 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1048 lp_ulonglong(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1049 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1050 int res;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1051 v = get_pylong(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1052 if (v == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1053 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1054 res = _PyLong_AsByteArray((PyLongObject*)v,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1055 (unsigned char *)p,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1056 8,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1057 1, /* little_endian */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1058 0 /* signed */);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1059 Py_DECREF(v);
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1060 return res;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1061 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1062
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1063 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1064 lp_float(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1065 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1066 double x = PyFloat_AsDouble(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1067 if (x == -1 && PyErr_Occurred()) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1068 PyErr_SetString(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1069 "required argument is not a float");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1070 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1071 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1072 return _PyFloat_Pack4(x, (unsigned char *)p, 1);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1073 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1074
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1075 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1076 lp_double(char *p, PyObject *v, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1077 {
61466
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diff changeset
1078 double x = PyFloat_AsDouble(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1079 if (x == -1 && PyErr_Occurred()) {
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parents: 60312
diff changeset
1080 PyErr_SetString(StructError,
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1081 "required argument is not a float");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
1082 return -1;
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parents: 60312
diff changeset
1083 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1084 return _PyFloat_Pack8(x, (unsigned char *)p, 1);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1085 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1086
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1087 static formatdef lilendian_table[] = {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1088 {'x', 1, 0, NULL},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1089 {'b', 1, 0, nu_byte, np_byte},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1090 {'B', 1, 0, nu_ubyte, np_ubyte},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1091 {'c', 1, 0, nu_char, np_char},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1092 {'s', 1, 0, NULL},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1093 {'p', 1, 0, NULL},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1094 {'h', 2, 0, lu_int, lp_int},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1095 {'H', 2, 0, lu_uint, lp_uint},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1096 {'i', 4, 0, lu_int, lp_int},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1097 {'I', 4, 0, lu_uint, lp_uint},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1098 {'l', 4, 0, lu_int, lp_int},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1099 {'L', 4, 0, lu_uint, lp_uint},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1100 {'q', 8, 0, lu_longlong, lp_longlong},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1101 {'Q', 8, 0, lu_ulonglong, lp_ulonglong},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1102 {'?', 1, 0, bu_bool, bp_bool}, /* Std rep not endian dep,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1103 but potentially different from native rep -- reuse bx_bool funcs. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1104 {'f', 4, 0, lu_float, lp_float},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1105 {'d', 8, 0, lu_double, lp_double},
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1106 {0}
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1107 };
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1108
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1109
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1110 static const formatdef *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1111 whichtable(char **pfmt)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1112 {
61466
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parents: 60312
diff changeset
1113 const char *fmt = (*pfmt)++; /* May be backed out of later */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1114 switch (*fmt) {
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parents: 60312
diff changeset
1115 case '<':
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diff changeset
1116 return lilendian_table;
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parents: 60312
diff changeset
1117 case '>':
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1118 case '!': /* Network byte order is big-endian */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1119 return bigendian_table;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1120 case '=': { /* Host byte order -- different from native in aligment! */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1121 int n = 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1122 char *p = (char *) &n;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1123 if (*p == 1)
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1124 return lilendian_table;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1125 else
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diff changeset
1126 return bigendian_table;
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parents: 60312
diff changeset
1127 }
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parents: 60312
diff changeset
1128 default:
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1129 --*pfmt; /* Back out of pointer increment */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1130 /* Fall through */
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parents: 60312
diff changeset
1131 case '@':
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1132 return native_table;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1133 }
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1134 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1135
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1136
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1137 /* Get the table entry for a format code */
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1138
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1139 static const formatdef *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1140 getentry(int c, const formatdef *f)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1141 {
61466
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diff changeset
1142 for (; f->format != '\0'; f++) {
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parents: 60312
diff changeset
1143 if (f->format == c) {
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parents: 60312
diff changeset
1144 return f;
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parents: 60312
diff changeset
1145 }
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parents: 60312
diff changeset
1146 }
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parents: 60312
diff changeset
1147 PyErr_SetString(StructError, "bad char in struct format");
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parents: 60312
diff changeset
1148 return NULL;
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parents:
diff changeset
1149 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1150
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1151
62250
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1152 /* Align a size according to a format code. Return -1 on overflow. */
38453
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parents:
diff changeset
1153
62246
6ff88dca8133 Fix an incorrect return type.
Mark Dickinson <dickinsm@gmail.com>
parents: 62245
diff changeset
1154 static Py_ssize_t
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1155 align(Py_ssize_t size, char c, const formatdef *e)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1156 {
62250
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1157 Py_ssize_t extra;
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1158
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1159 if (e->format == c) {
62250
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1160 if (e->alignment && size > 0) {
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1161 extra = (e->alignment - 1) - (size - 1) % (e->alignment);
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1162 if (extra > PY_SSIZE_T_MAX - size)
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1163 return -1;
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1164 size += extra;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1165 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1166 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1167 return size;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1168 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1169
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1170
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1171 /* calculate the size of a format string */
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1172
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1173 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1174 prepare_s(PyStructObject *self)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1175 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1176 const formatdef *f;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1177 const formatdef *e;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1178 formatcode *codes;
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1179
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1180 const char *s;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1181 const char *fmt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1182 char c;
62250
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1183 Py_ssize_t size, len, num, itemsize;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1184
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1185 fmt = PyBytes_AS_STRING(self->s_format);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1186
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1187 f = whichtable((char **)&fmt);
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1188
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1189 s = fmt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1190 size = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1191 len = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1192 while ((c = *s++) != '\0') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1193 if (isspace(Py_CHARMASK(c)))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1194 continue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1195 if ('0' <= c && c <= '9') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1196 num = c - '0';
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1197 while ('0' <= (c = *s++) && c <= '9') {
62245
6adc83d999d0 Avoid possible undefined behaviour from signed overflow.
Mark Dickinson <dickinsm@gmail.com>
parents: 62243
diff changeset
1198 /* overflow-safe version of
6adc83d999d0 Avoid possible undefined behaviour from signed overflow.
Mark Dickinson <dickinsm@gmail.com>
parents: 62243
diff changeset
1199 if (num*10 + (c - '0') > PY_SSIZE_T_MAX) { ... } */
6adc83d999d0 Avoid possible undefined behaviour from signed overflow.
Mark Dickinson <dickinsm@gmail.com>
parents: 62243
diff changeset
1200 if (num >= PY_SSIZE_T_MAX / 10 && (
6adc83d999d0 Avoid possible undefined behaviour from signed overflow.
Mark Dickinson <dickinsm@gmail.com>
parents: 62243
diff changeset
1201 num > PY_SSIZE_T_MAX / 10 ||
62250
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1202 (c - '0') > PY_SSIZE_T_MAX % 10))
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1203 goto overflow;
62245
6adc83d999d0 Avoid possible undefined behaviour from signed overflow.
Mark Dickinson <dickinsm@gmail.com>
parents: 62243
diff changeset
1204 num = num*10 + (c - '0');
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1205 }
62243
3ba1b5b4c108 Issue #3129: Trailing digits in format string are no longer ignored.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 61466
diff changeset
1206 if (c == '\0') {
3ba1b5b4c108 Issue #3129: Trailing digits in format string are no longer ignored.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 61466
diff changeset
1207 PyErr_SetString(StructError,
3ba1b5b4c108 Issue #3129: Trailing digits in format string are no longer ignored.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 61466
diff changeset
1208 "repeat count given without format specifier");
3ba1b5b4c108 Issue #3129: Trailing digits in format string are no longer ignored.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 61466
diff changeset
1209 return -1;
3ba1b5b4c108 Issue #3129: Trailing digits in format string are no longer ignored.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 61466
diff changeset
1210 }
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1211 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1212 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1213 num = 1;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1214
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1215 e = getentry(c, f);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1216 if (e == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1217 return -1;
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1218
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1219 switch (c) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1220 case 's': /* fall through */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1221 case 'p': len++; break;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1222 case 'x': break;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1223 default: len += num; break;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1224 }
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1225
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1226 itemsize = e->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1227 size = align(size, c, e);
62250
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1228 if (size == -1)
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1229 goto overflow;
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1230
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1231 /* if (size + num * itemsize > PY_SSIZE_T_MAX) { ... } */
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1232 if (num > (PY_SSIZE_T_MAX - size) / itemsize)
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1233 goto overflow;
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1234 size += num * itemsize;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1235 }
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1236
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1237 /* check for overflow */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1238 if ((len + 1) > (PY_SSIZE_T_MAX / sizeof(formatcode))) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1239 PyErr_NoMemory();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1240 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1241 }
48321
f6726f32ef70 Merged revisions 64119,64147,64150,64165,64219-64221,64229-64230,64233,64235,64253,64278,64280,64301,64303,64320,64328,64338-64339 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47580
diff changeset
1242
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1243 self->s_size = size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1244 self->s_len = len;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1245 codes = PyMem_MALLOC((len + 1) * sizeof(formatcode));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1246 if (codes == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1247 PyErr_NoMemory();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1248 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1249 }
63298
29ab536cfef6 Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
Mark Dickinson <dickinsm@gmail.com>
parents: 63065
diff changeset
1250 /* Free any s_codes value left over from a previous initialization. */
29ab536cfef6 Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
Mark Dickinson <dickinsm@gmail.com>
parents: 63065
diff changeset
1251 if (self->s_codes != NULL)
29ab536cfef6 Issue #9422: Fix memory leak when re-initializing a struct.Struct object.
Mark Dickinson <dickinsm@gmail.com>
parents: 63065
diff changeset
1252 PyMem_FREE(self->s_codes);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1253 self->s_codes = codes;
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1254
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1255 s = fmt;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1256 size = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1257 while ((c = *s++) != '\0') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1258 if (isspace(Py_CHARMASK(c)))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1259 continue;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1260 if ('0' <= c && c <= '9') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1261 num = c - '0';
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1262 while ('0' <= (c = *s++) && c <= '9')
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1263 num = num*10 + (c - '0');
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1264 if (c == '\0')
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1265 break;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1266 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1267 else
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1268 num = 1;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1269
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1270 e = getentry(c, f);
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1271
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1272 size = align(size, c, e);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1273 if (c == 's' || c == 'p') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1274 codes->offset = size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1275 codes->size = num;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1276 codes->fmtdef = e;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1277 codes++;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1278 size += num;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1279 } else if (c == 'x') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1280 size += num;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1281 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1282 while (--num >= 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1283 codes->offset = size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1284 codes->size = e->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1285 codes->fmtdef = e;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1286 codes++;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1287 size += e->size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1288 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1289 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1290 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1291 codes->fmtdef = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1292 codes->offset = size;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1293 codes->size = 0;
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1294
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1295 return 0;
62250
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1296
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1297 overflow:
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1298 PyErr_SetString(StructError,
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1299 "total struct size too long");
73d82b0b6dee Fix more undefined-behaviour inducing overflow checks in struct module.
Mark Dickinson <dickinsm@gmail.com>
parents: 62246
diff changeset
1300 return -1;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1301 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1302
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1303 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1304 s_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1305 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1306 PyObject *self;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1307
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1308 assert(type != NULL && type->tp_alloc != NULL);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1309
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1310 self = type->tp_alloc(type, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1311 if (self != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1312 PyStructObject *s = (PyStructObject*)self;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1313 Py_INCREF(Py_None);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1314 s->s_format = Py_None;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1315 s->s_codes = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1316 s->s_size = -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1317 s->s_len = -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1318 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1319 return self;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1320 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1321
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1322 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1323 s_init(PyObject *self, PyObject *args, PyObject *kwds)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1324 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1325 PyStructObject *soself = (PyStructObject *)self;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1326 PyObject *o_format = NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1327 int ret = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1328 static char *kwlist[] = {"format", 0};
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1329
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1330 assert(PyStruct_Check(self));
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1331
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1332 if (!PyArg_ParseTupleAndKeywords(args, kwds, "O:Struct", kwlist,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1333 &o_format))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1334 return -1;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1335
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1336 if (PyUnicode_Check(o_format)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1337 o_format = PyUnicode_AsASCIIString(o_format);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1338 if (o_format == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1339 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1340 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1341 /* XXX support buffer interface, too */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1342 else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1343 Py_INCREF(o_format);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1344 }
44460
13aabc23cf2e Merged revisions 59680-59695 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44351
diff changeset
1345
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1346 if (!PyBytes_Check(o_format)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1347 Py_DECREF(o_format);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1348 PyErr_Format(PyExc_TypeError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1349 "Struct() argument 1 must be bytes, not %.200s",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1350 Py_TYPE(o_format)->tp_name);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1351 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1352 }
44460
13aabc23cf2e Merged revisions 59680-59695 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44351
diff changeset
1353
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1354 Py_CLEAR(soself->s_format);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1355 soself->s_format = o_format;
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1356
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1357 ret = prepare_s(soself);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1358 return ret;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1359 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1360
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1361 static void
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1362 s_dealloc(PyStructObject *s)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1363 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1364 if (s->weakreflist != NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1365 PyObject_ClearWeakRefs((PyObject *)s);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1366 if (s->s_codes != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1367 PyMem_FREE(s->s_codes);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1368 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1369 Py_XDECREF(s->s_format);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1370 Py_TYPE(s)->tp_free((PyObject *)s);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1371 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1372
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1373 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1374 s_unpack_internal(PyStructObject *soself, char *startfrom) {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1375 formatcode *code;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1376 Py_ssize_t i = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1377 PyObject *result = PyTuple_New(soself->s_len);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1378 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1379 return NULL;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1380
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1381 for (code = soself->s_codes; code->fmtdef != NULL; code++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1382 PyObject *v;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1383 const formatdef *e = code->fmtdef;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1384 const char *res = startfrom + code->offset;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1385 if (e->format == 's') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1386 v = PyBytes_FromStringAndSize(res, code->size);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1387 } else if (e->format == 'p') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1388 Py_ssize_t n = *(unsigned char*)res;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1389 if (n >= code->size)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1390 n = code->size - 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1391 v = PyBytes_FromStringAndSize(res + 1, n);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1392 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1393 v = e->unpack(res, e);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1394 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1395 if (v == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1396 goto fail;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1397 PyTuple_SET_ITEM(result, i++, v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1398 }
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1399
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1400 return result;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1401 fail:
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1402 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1403 return NULL;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1404 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1405
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1406
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1407 PyDoc_STRVAR(s_unpack__doc__,
41453
35f9ffc6b510 struct.unpack() allows a bytes string too (if it has the right size).
Guido van Rossum <guido@python.org>
parents: 40737
diff changeset
1408 "S.unpack(buffer) -> (v1, v2, ...)\n\
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1409 \n\
62298
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1410 Return a tuple containing values unpacked according to the format\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1411 string S.format. Requires len(buffer) == S.size. See help(struct)\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1412 for more on format strings.");
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1413
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1414 static PyObject *
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
1415 s_unpack(PyObject *self, PyObject *input)
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1416 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1417 Py_buffer vbuf;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1418 PyObject *result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1419 PyStructObject *soself = (PyStructObject *)self;
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
1420
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1421 assert(PyStruct_Check(self));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1422 assert(soself->s_codes != NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1423 if (PyObject_GetBuffer(input, &vbuf, PyBUF_SIMPLE) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1424 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1425 if (vbuf.len != soself->s_size) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1426 PyErr_Format(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1427 "unpack requires a bytes argument of length %zd",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1428 soself->s_size);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1429 PyBuffer_Release(&vbuf);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1430 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1431 }
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1432 result = s_unpack_internal(soself, vbuf.buf);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1433 PyBuffer_Release(&vbuf);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1434 return result;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1435 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1436
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1437 PyDoc_STRVAR(s_unpack_from__doc__,
62314
7ac6148e6a7f Remove unnecessary brackets from docstring optional arguments.
Mark Dickinson <dickinsm@gmail.com>
parents: 62310
diff changeset
1438 "S.unpack_from(buffer, offset=0) -> (v1, v2, ...)\n\
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1439 \n\
62298
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1440 Return a tuple containing values unpacked according to the format\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1441 string S.format. Requires len(buffer[offset:]) >= S.size. See\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1442 help(struct) for more on format strings.");
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1443
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1444 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1445 s_unpack_from(PyObject *self, PyObject *args, PyObject *kwds)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1446 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1447 static char *kwlist[] = {"buffer", "offset", 0};
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
1448
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1449 PyObject *input;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1450 Py_ssize_t offset = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1451 Py_buffer vbuf;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1452 PyObject *result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1453 PyStructObject *soself = (PyStructObject *)self;
43777
0d462d789b18 Merging the py3k-pep3137 branch back into the py3k branch.
Guido van Rossum <guido@python.org>
parents: 42334
diff changeset
1454
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1455 assert(PyStruct_Check(self));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1456 assert(soself->s_codes != NULL);
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1457
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1458 if (!PyArg_ParseTupleAndKeywords(args, kwds,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1459 "O|n:unpack_from", kwlist,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1460 &input, &offset))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1461 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1462 if (PyObject_GetBuffer(input, &vbuf, PyBUF_SIMPLE) < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1463 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1464 if (offset < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1465 offset += vbuf.len;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1466 if (offset < 0 || vbuf.len - offset < soself->s_size) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1467 PyErr_Format(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1468 "unpack_from requires a buffer of at least %zd bytes",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1469 soself->s_size);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1470 PyBuffer_Release(&vbuf);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1471 return NULL;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1472 }
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parents: 60312
diff changeset
1473 result = s_unpack_internal(soself, (char*)vbuf.buf + offset);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1474 PyBuffer_Release(&vbuf);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1475 return result;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1476 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1477
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1478
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1479 /*
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1480 * Guts of the pack function.
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1481 *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1482 * Takes a struct object, a tuple of arguments, and offset in that tuple of
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1483 * argument for where to start processing the arguments for packing, and a
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1484 * character buffer for writing the packed string. The caller must insure
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1485 * that the buffer may contain the required length for packing the arguments.
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1486 * 0 is returned on success, 1 is returned if there is an error.
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1487 *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1488 */
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1489 static int
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1490 s_pack_internal(PyStructObject *soself, PyObject *args, int offset, char* buf)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1491 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1492 formatcode *code;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1493 /* XXX(nnorwitz): why does i need to be a local? can we use
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1494 the offset parameter or do we need the wider width? */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1495 Py_ssize_t i;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1496
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1497 memset(buf, '\0', soself->s_size);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1498 i = offset;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1499 for (code = soself->s_codes; code->fmtdef != NULL; code++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1500 Py_ssize_t n;
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parents: 60312
diff changeset
1501 PyObject *v = PyTuple_GET_ITEM(args, i++);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1502 const formatdef *e = code->fmtdef;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1503 char *res = buf + code->offset;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1504 if (e->format == 's') {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1505 int isstring;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1506 void *p;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1507 if (PyUnicode_Check(v)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1508 v = _PyUnicode_AsDefaultEncodedString(v, NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1509 if (v == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1510 return -1;
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parents: 60312
diff changeset
1511 }
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parents: 60312
diff changeset
1512 isstring = PyBytes_Check(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1513 if (!isstring && !PyByteArray_Check(v)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1514 PyErr_SetString(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1515 "argument for 's' must be a bytes or string");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1516 return -1;
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parents: 60312
diff changeset
1517 }
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parents: 60312
diff changeset
1518 if (isstring) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1519 n = PyBytes_GET_SIZE(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1520 p = PyBytes_AS_STRING(v);
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parents: 60312
diff changeset
1521 }
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diff changeset
1522 else {
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parents: 60312
diff changeset
1523 n = PyByteArray_GET_SIZE(v);
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parents: 60312
diff changeset
1524 p = PyByteArray_AS_STRING(v);
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parents: 60312
diff changeset
1525 }
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parents: 60312
diff changeset
1526 if (n > code->size)
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parents: 60312
diff changeset
1527 n = code->size;
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parents: 60312
diff changeset
1528 if (n > 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60312
diff changeset
1529 memcpy(res, p, n);
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parents: 60312
diff changeset
1530 } else if (e->format == 'p') {
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parents: 60312
diff changeset
1531 int isstring;
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parents: 60312
diff changeset
1532 void *p;
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diff changeset
1533 if (PyUnicode_Check(v)) {
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parents: 60312
diff changeset
1534 v = _PyUnicode_AsDefaultEncodedString(v, NULL);
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parents: 60312
diff changeset
1535 if (v == NULL)
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diff changeset
1536 return -1;
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diff changeset
1537 }
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diff changeset
1538 isstring = PyBytes_Check(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1539 if (!isstring && !PyByteArray_Check(v)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1540 PyErr_SetString(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1541 "argument for 'p' must be a bytes or string");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1542 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1543 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1544 if (isstring) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1545 n = PyBytes_GET_SIZE(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1546 p = PyBytes_AS_STRING(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1547 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1548 else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1549 n = PyByteArray_GET_SIZE(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1550 p = PyByteArray_AS_STRING(v);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1551 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1552 if (n > (code->size - 1))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1553 n = code->size - 1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1554 if (n > 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1555 memcpy(res + 1, p, n);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1556 if (n > 255)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1557 n = 255;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1558 *res = Py_SAFE_DOWNCAST(n, Py_ssize_t, unsigned char);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1559 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1560 if (e->pack(res, v, e) < 0) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1561 if (PyLong_Check(v) && PyErr_ExceptionMatches(PyExc_OverflowError))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1562 PyErr_SetString(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1563 "long too large to convert to int");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1564 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1565 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1566 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1567 }
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1568
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1569 /* Success */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1570 return 0;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1571 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1572
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1573
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1574 PyDoc_STRVAR(s_pack__doc__,
48591
1de718a31004 update the struct documentation to refer to bytes
Benjamin Peterson <benjamin@python.org>
parents: 48321
diff changeset
1575 "S.pack(v1, v2, ...) -> bytes\n\
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1576 \n\
62298
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1577 Return a bytes object containing values v1, v2, ... packed according\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1578 to the format string S.format. See help(struct) for more on format\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1579 strings.");
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1580
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1581 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1582 s_pack(PyObject *self, PyObject *args)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1583 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1584 PyStructObject *soself;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1585 PyObject *result;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1586
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1587 /* Validate arguments. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1588 soself = (PyStructObject *)self;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1589 assert(PyStruct_Check(self));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1590 assert(soself->s_codes != NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1591 if (PyTuple_GET_SIZE(args) != soself->s_len)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1592 {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1593 PyErr_Format(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1594 "pack requires exactly %zd arguments", soself->s_len);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1595 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1596 }
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1597
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1598 /* Allocate a new string */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1599 result = PyBytes_FromStringAndSize((char *)NULL, soself->s_size);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1600 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1601 return NULL;
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1602
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1603 /* Call the guts */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1604 if ( s_pack_internal(soself, args, 0, PyBytes_AS_STRING(result)) != 0 ) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1605 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1606 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1607 }
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1608
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1609 return result;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1610 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1611
38673
a19c20c5e5c7 Merge the rest of the trunk.
Thomas Wouters <thomas@python.org>
parents: 38669
diff changeset
1612 PyDoc_STRVAR(s_pack_into__doc__,
a19c20c5e5c7 Merge the rest of the trunk.
Thomas Wouters <thomas@python.org>
parents: 38669
diff changeset
1613 "S.pack_into(buffer, offset, v1, v2, ...)\n\
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1614 \n\
62298
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1615 Pack the values v1, v2, ... according to the format string S.format\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1616 and write the packed bytes into the writable buffer buf starting at\n\
62299
9b333bf08d45 More struct module docs and docstring tweaks.
Mark Dickinson <dickinsm@gmail.com>
parents: 62298
diff changeset
1617 offset. Note that the offset is a required argument. See\n\
62298
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1618 help(struct) for more on format strings.");
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1619
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1620 static PyObject *
38673
a19c20c5e5c7 Merge the rest of the trunk.
Thomas Wouters <thomas@python.org>
parents: 38669
diff changeset
1621 s_pack_into(PyObject *self, PyObject *args)
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1622 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1623 PyStructObject *soself;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1624 char *buffer;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1625 Py_ssize_t buffer_len, offset;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1626
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1627 /* Validate arguments. +1 is for the first arg as buffer. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1628 soself = (PyStructObject *)self;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1629 assert(PyStruct_Check(self));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1630 assert(soself->s_codes != NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1631 if (PyTuple_GET_SIZE(args) != (soself->s_len + 2))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1632 {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1633 PyErr_Format(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1634 "pack_into requires exactly %zd arguments",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1635 (soself->s_len + 2));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1636 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1637 }
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1638
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1639 /* Extract a writable memory buffer from the first argument */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1640 if ( PyObject_AsWriteBuffer(PyTuple_GET_ITEM(args, 0),
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1641 (void**)&buffer, &buffer_len) == -1 ) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1642 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1643 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1644 assert( buffer_len >= 0 );
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1645
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1646 /* Extract the offset from the first argument */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1647 offset = PyNumber_AsSsize_t(PyTuple_GET_ITEM(args, 1), PyExc_IndexError);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1648 if (offset == -1 && PyErr_Occurred())
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1649 return NULL;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1650
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1651 /* Support negative offsets. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1652 if (offset < 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1653 offset += buffer_len;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1654
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1655 /* Check boundaries */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1656 if (offset < 0 || (buffer_len - offset) < soself->s_size) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1657 PyErr_Format(StructError,
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1658 "pack_into requires a buffer of at least %zd bytes",
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1659 soself->s_size);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1660 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1661 }
38669
19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
1662
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1663 /* Call the guts */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1664 if ( s_pack_internal(soself, args, 2, buffer + offset) != 0 ) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1665 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1666 }
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1667
61466
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diff changeset
1668 Py_RETURN_NONE;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1669 }
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1670
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1671 static PyObject *
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Thomas Wouters <thomas@python.org>
parents:
diff changeset
1672 s_get_format(PyStructObject *self, void *unused)
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parents:
diff changeset
1673 {
61466
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diff changeset
1674 Py_INCREF(self->s_format);
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diff changeset
1675 return self->s_format;
38453
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parents:
diff changeset
1676 }
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Thomas Wouters <thomas@python.org>
parents:
diff changeset
1677
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1678 static PyObject *
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1679 s_get_size(PyStructObject *self, void *unused)
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1680 {
44099
f324631462a2 Cleanup: Replaced most PyInt_ aliases with PyLong_ and disabled the aliases in intobject.h
Christian Heimes <christian@cheimes.de>
parents: 43777
diff changeset
1681 return PyLong_FromSsize_t(self->s_size);
38453
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parents:
diff changeset
1682 }
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Thomas Wouters <thomas@python.org>
parents:
diff changeset
1683
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1684 /* List of functions */
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Thomas Wouters <thomas@python.org>
parents:
diff changeset
1685
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
1686 static struct PyMethodDef s_methods[] = {
61466
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diff changeset
1687 {"pack", s_pack, METH_VARARGS, s_pack__doc__},
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1688 {"pack_into", s_pack_into, METH_VARARGS, s_pack_into__doc__},
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diff changeset
1689 {"unpack", s_unpack, METH_O, s_unpack__doc__},
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diff changeset
1690 {"unpack_from", (PyCFunction)s_unpack_from, METH_VARARGS|METH_KEYWORDS,
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diff changeset
1691 s_unpack_from__doc__},
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diff changeset
1692 {NULL, NULL} /* sentinel */
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diff changeset
1693 };
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Thomas Wouters <thomas@python.org>
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diff changeset
1694
62310
e585b2431c4a Issue #8973: Expanded Struct.__doc__.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 62299
diff changeset
1695 PyDoc_STRVAR(s__doc__,
e585b2431c4a Issue #8973: Expanded Struct.__doc__.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 62299
diff changeset
1696 "Struct(fmt) --> compiled struct object\n"
e585b2431c4a Issue #8973: Expanded Struct.__doc__.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 62299
diff changeset
1697 "\n"
e585b2431c4a Issue #8973: Expanded Struct.__doc__.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 62299
diff changeset
1698 "Return a new Struct object which writes and reads binary data according to\n"
e585b2431c4a Issue #8973: Expanded Struct.__doc__.
Alexander Belopolsky <alexander.belopolsky@gmail.com>
parents: 62299
diff changeset
1699 "the format string fmt. See help(struct) for more on format strings.");
38453
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diff changeset
1700
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Thomas Wouters <thomas@python.org>
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diff changeset
1701 #define OFF(x) offsetof(PyStructObject, x)
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1702
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Thomas Wouters <thomas@python.org>
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diff changeset
1703 static PyGetSetDef s_getsetlist[] = {
61466
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diff changeset
1704 {"format", (getter)s_get_format, (setter)NULL, "struct format string", NULL},
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diff changeset
1705 {"size", (getter)s_get_size, (setter)NULL, "struct size in bytes", NULL},
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diff changeset
1706 {NULL} /* sentinel */
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1707 };
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parents:
diff changeset
1708
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
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diff changeset
1709 static
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diff changeset
1710 PyTypeObject PyStructType = {
61466
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diff changeset
1711 PyVarObject_HEAD_INIT(NULL, 0)
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diff changeset
1712 "Struct",
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diff changeset
1713 sizeof(PyStructObject),
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diff changeset
1714 0,
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diff changeset
1715 (destructor)s_dealloc, /* tp_dealloc */
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diff changeset
1716 0, /* tp_print */
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diff changeset
1717 0, /* tp_getattr */
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diff changeset
1718 0, /* tp_setattr */
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diff changeset
1719 0, /* tp_reserved */
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diff changeset
1720 0, /* tp_repr */
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1721 0, /* tp_as_number */
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diff changeset
1722 0, /* tp_as_sequence */
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diff changeset
1723 0, /* tp_as_mapping */
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diff changeset
1724 0, /* tp_hash */
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diff changeset
1725 0, /* tp_call */
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diff changeset
1726 0, /* tp_str */
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parents: 60312
diff changeset
1727 PyObject_GenericGetAttr, /* tp_getattro */
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diff changeset
1728 PyObject_GenericSetAttr, /* tp_setattro */
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parents: 60312
diff changeset
1729 0, /* tp_as_buffer */
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diff changeset
1730 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_BASETYPE, /* tp_flags */
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diff changeset
1731 s__doc__, /* tp_doc */
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diff changeset
1732 0, /* tp_traverse */
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diff changeset
1733 0, /* tp_clear */
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diff changeset
1734 0, /* tp_richcompare */
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parents: 60312
diff changeset
1735 offsetof(PyStructObject, weakreflist), /* tp_weaklistoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
1736 0, /* tp_iter */
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
1737 0, /* tp_iternext */
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parents: 60312
diff changeset
1738 s_methods, /* tp_methods */
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diff changeset
1739 NULL, /* tp_members */
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parents: 60312
diff changeset
1740 s_getsetlist, /* tp_getset */
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diff changeset
1741 0, /* tp_base */
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diff changeset
1742 0, /* tp_dict */
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diff changeset
1743 0, /* tp_descr_get */
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diff changeset
1744 0, /* tp_descr_set */
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diff changeset
1745 0, /* tp_dictoffset */
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diff changeset
1746 s_init, /* tp_init */
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diff changeset
1747 PyType_GenericAlloc,/* tp_alloc */
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diff changeset
1748 s_new, /* tp_new */
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diff changeset
1749 PyObject_Del, /* tp_free */
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diff changeset
1750 };
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Thomas Wouters <thomas@python.org>
parents:
diff changeset
1751
44460
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Christian Heimes <christian@cheimes.de>
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diff changeset
1752
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diff changeset
1753 /* ---- Standalone functions ---- */
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diff changeset
1754
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diff changeset
1755 #define MAXCACHE 100
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diff changeset
1756 static PyObject *cache = NULL;
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diff changeset
1757
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diff changeset
1758 static PyObject *
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diff changeset
1759 cache_struct(PyObject *fmt)
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diff changeset
1760 {
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diff changeset
1761 PyObject * s_object;
44460
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1762
61466
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1763 if (cache == NULL) {
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diff changeset
1764 cache = PyDict_New();
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diff changeset
1765 if (cache == NULL)
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diff changeset
1766 return NULL;
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diff changeset
1767 }
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diff changeset
1768
61466
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diff changeset
1769 s_object = PyDict_GetItem(cache, fmt);
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diff changeset
1770 if (s_object != NULL) {
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diff changeset
1771 Py_INCREF(s_object);
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diff changeset
1772 return s_object;
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1773 }
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1774
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1775 s_object = PyObject_CallFunctionObjArgs((PyObject *)(&PyStructType), fmt, NULL);
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1776 if (s_object != NULL) {
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diff changeset
1777 if (PyDict_Size(cache) >= MAXCACHE)
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diff changeset
1778 PyDict_Clear(cache);
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diff changeset
1779 /* Attempt to cache the result */
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diff changeset
1780 if (PyDict_SetItem(cache, fmt, s_object) == -1)
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diff changeset
1781 PyErr_Clear();
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diff changeset
1782 }
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1783 return s_object;
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1784 }
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1785
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1786 PyDoc_STRVAR(clearcache_doc,
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1787 "Clear the internal cache.");
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diff changeset
1788
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1789 static PyObject *
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1790 clearcache(PyObject *self)
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1791 {
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1792 Py_CLEAR(cache);
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diff changeset
1793 Py_RETURN_NONE;
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1794 }
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1795
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1796 PyDoc_STRVAR(calcsize_doc,
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Mark Dickinson <dickinsm@gmail.com>
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diff changeset
1797 "calcsize(fmt) -> integer\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
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parents: 62297
diff changeset
1798 \n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
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diff changeset
1799 Return size in bytes of the struct described by the format string fmt.");
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1800
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1801 static PyObject *
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1802 calcsize(PyObject *self, PyObject *fmt)
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diff changeset
1803 {
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1804 Py_ssize_t n;
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1805 PyObject *s_object = cache_struct(fmt);
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1806 if (s_object == NULL)
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1807 return NULL;
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1808 n = ((PyStructObject *)s_object)->s_size;
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1809 Py_DECREF(s_object);
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1810 return PyLong_FromSsize_t(n);
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1811 }
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1812
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1813 PyDoc_STRVAR(pack_doc,
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9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1814 "pack(fmt, v1, v2, ...) -> bytes\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
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diff changeset
1815 \n\
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1816 Return a bytes object containing the values v1, v2, ... packed according\n\
9b333bf08d45 More struct module docs and docstring tweaks.
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1817 to the format string fmt. See help(struct) for more on format strings.");
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1818
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1819 static PyObject *
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1820 pack(PyObject *self, PyObject *args)
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1821 {
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1822 PyObject *s_object, *fmt, *newargs, *result;
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1823 Py_ssize_t n = PyTuple_GET_SIZE(args);
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1824
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1825 if (n == 0) {
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1826 PyErr_SetString(PyExc_TypeError, "missing format argument");
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1827 return NULL;
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1828 }
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1829 fmt = PyTuple_GET_ITEM(args, 0);
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1830 newargs = PyTuple_GetSlice(args, 1, n);
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1831 if (newargs == NULL)
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1832 return NULL;
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1833
61466
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1834 s_object = cache_struct(fmt);
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1835 if (s_object == NULL) {
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1836 Py_DECREF(newargs);
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1837 return NULL;
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1838 }
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1839 result = s_pack(s_object, newargs);
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1840 Py_DECREF(newargs);
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1841 Py_DECREF(s_object);
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1842 return result;
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1843 }
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1844
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1845 PyDoc_STRVAR(pack_into_doc,
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diff changeset
1846 "pack_into(fmt, buffer, offset, v1, v2, ...)\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
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diff changeset
1847 \n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
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parents: 62297
diff changeset
1848 Pack the values v1, v2, ... according to the format string fmt and write\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1849 the packed bytes into the writable buffer buf starting at offset. Note\n\
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1850 that the offset is a required argument. See help(struct) for more\n\
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diff changeset
1851 on format strings.");
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diff changeset
1852
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1853 static PyObject *
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1854 pack_into(PyObject *self, PyObject *args)
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1855 {
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1856 PyObject *s_object, *fmt, *newargs, *result;
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1857 Py_ssize_t n = PyTuple_GET_SIZE(args);
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1858
61466
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1859 if (n == 0) {
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1860 PyErr_SetString(PyExc_TypeError, "missing format argument");
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1861 return NULL;
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1862 }
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1863 fmt = PyTuple_GET_ITEM(args, 0);
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1864 newargs = PyTuple_GetSlice(args, 1, n);
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1865 if (newargs == NULL)
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1866 return NULL;
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1867
61466
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1868 s_object = cache_struct(fmt);
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1869 if (s_object == NULL) {
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1870 Py_DECREF(newargs);
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1871 return NULL;
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1872 }
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1873 result = s_pack_into(s_object, newargs);
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1874 Py_DECREF(newargs);
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1875 Py_DECREF(s_object);
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1876 return result;
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1877 }
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1878
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1879 PyDoc_STRVAR(unpack_doc,
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1880 "unpack(fmt, buffer) -> (v1, v2, ...)\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1881 \n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1882 Return a tuple containing values unpacked according to the format string\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1883 fmt. Requires len(buffer) == calcsize(fmt). See help(struct) for more\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
Mark Dickinson <dickinsm@gmail.com>
parents: 62297
diff changeset
1884 on format strings.");
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diff changeset
1885
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1886 static PyObject *
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diff changeset
1887 unpack(PyObject *self, PyObject *args)
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diff changeset
1888 {
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1889 PyObject *s_object, *fmt, *inputstr, *result;
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1890
61466
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1891 if (!PyArg_UnpackTuple(args, "unpack", 2, 2, &fmt, &inputstr))
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1892 return NULL;
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1893
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1894 s_object = cache_struct(fmt);
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1895 if (s_object == NULL)
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1896 return NULL;
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1897 result = s_unpack(s_object, inputstr);
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1898 Py_DECREF(s_object);
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1899 return result;
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1900 }
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1901
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1902 PyDoc_STRVAR(unpack_from_doc,
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1903 "unpack_from(fmt, buffer, offset=0) -> (v1, v2, ...)\n\
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1904 \n\
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1905 Return a tuple containing values unpacked according to the format string\n\
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parents: 62297
diff changeset
1906 fmt. Requires len(buffer[offset:]) >= calcsize(fmt). See help(struct)\n\
9550eda1c096 Issue #8973: Improve struct module docstrings.
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diff changeset
1907 for more on format strings.");
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1908
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1909 static PyObject *
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1910 unpack_from(PyObject *self, PyObject *args, PyObject *kwds)
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1911 {
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1912 PyObject *s_object, *fmt, *newargs, *result;
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1913 Py_ssize_t n = PyTuple_GET_SIZE(args);
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1914
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1915 if (n == 0) {
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1916 PyErr_SetString(PyExc_TypeError, "missing format argument");
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1917 return NULL;
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1918 }
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1919 fmt = PyTuple_GET_ITEM(args, 0);
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1920 newargs = PyTuple_GetSlice(args, 1, n);
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1921 if (newargs == NULL)
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1922 return NULL;
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1923
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1924 s_object = cache_struct(fmt);
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1925 if (s_object == NULL) {
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1926 Py_DECREF(newargs);
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1927 return NULL;
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1928 }
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1929 result = s_unpack_from(s_object, newargs, kwds);
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1930 Py_DECREF(newargs);
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1931 Py_DECREF(s_object);
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1932 return result;
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1933 }
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1934
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1935 static struct PyMethodDef module_functions[] = {
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1936 {"_clearcache", (PyCFunction)clearcache, METH_NOARGS, clearcache_doc},
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1937 {"calcsize", calcsize, METH_O, calcsize_doc},
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1938 {"pack", pack, METH_VARARGS, pack_doc},
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1939 {"pack_into", pack_into, METH_VARARGS, pack_into_doc},
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1940 {"unpack", unpack, METH_VARARGS, unpack_doc},
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1941 {"unpack_from", (PyCFunction)unpack_from,
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1942 METH_VARARGS|METH_KEYWORDS, unpack_from_doc},
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1943 {NULL, NULL} /* sentinel */
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1944 };
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1945
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1946
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1947 /* Module initialization */
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1948
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1949 PyDoc_STRVAR(module_doc,
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1950 "Functions to convert between Python values and C structs.\n\
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1951 Python bytes objects are used to hold the data representing the C struct\n\
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1952 and also as format strings (explained below) to describe the layout of data\n\
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1953 in the C struct.\n\
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1954 \n\
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1955 The optional first format char indicates byte order, size and alignment:\n\
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1956 @: native order, size & alignment (default)\n\
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1957 =: native order, std. size & alignment\n\
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1958 <: little-endian, std. size & alignment\n\
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1959 >: big-endian, std. size & alignment\n\
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1960 !: same as >\n\
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1961 \n\
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1962 The remaining chars indicate types of args and must match exactly;\n\
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1963 these can be preceded by a decimal repeat count:\n\
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1964 x: pad byte (no data); c:char; b:signed byte; B:unsigned byte;\n\
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1965 ?: _Bool (requires C99; if not available, char is used instead)\n\
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1966 h:short; H:unsigned short; i:int; I:unsigned int;\n\
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1967 l:long; L:unsigned long; f:float; d:double.\n\
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1968 Special cases (preceding decimal count indicates length):\n\
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1969 s:string (array of char); p: pascal string (with count byte).\n\
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1970 Special case (only available in native format):\n\
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1971 P:an integer type that is wide enough to hold a pointer.\n\
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1972 Special case (not in native mode unless 'long long' in platform C):\n\
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1973 q:long long; Q:unsigned long long\n\
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1974 Whitespace between formats is ignored.\n\
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1975 \n\
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1976 The variable struct.error is an exception raised on errors.\n");
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1977
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Martin v. Löwis <martin@v.loewis.de>
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1978
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1979 static struct PyModuleDef _structmodule = {
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1980 PyModuleDef_HEAD_INIT,
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1981 "_struct",
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1982 module_doc,
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1983 -1,
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1984 module_functions,
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1985 NULL,
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1986 NULL,
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1987 NULL,
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1988 NULL
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1989 };
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1990
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1991 PyMODINIT_FUNC
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1992 PyInit__struct(void)
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1993 {
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1994 PyObject *m;
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1995
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1996 m = PyModule_Create(&_structmodule);
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1997 if (m == NULL)
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1998 return NULL;
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1999
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2000 Py_TYPE(&PyStructType) = &PyType_Type;
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2001 if (PyType_Ready(&PyStructType) < 0)
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2002 return NULL;
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2003
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2004 /* Check endian and swap in faster functions */
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2005 {
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2006 int one = 1;
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2007 formatdef *native = native_table;
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2008 formatdef *other, *ptr;
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2009 if ((int)*(unsigned char*)&one)
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2010 other = lilendian_table;
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2011 else
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2012 other = bigendian_table;
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2013 /* Scan through the native table, find a matching
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2014 entry in the endian table and swap in the
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2015 native implementations whenever possible
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2016 (64-bit platforms may not have "standard" sizes) */
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2017 while (native->format != '\0' && other->format != '\0') {
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2018 ptr = other;
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2019 while (ptr->format != '\0') {
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2020 if (ptr->format == native->format) {
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2021 /* Match faster when formats are
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2022 listed in the same order */
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2023 if (ptr == other)
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2024 other++;
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2025 /* Only use the trick if the
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2026 size matches */
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2027 if (ptr->size != native->size)
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2028 break;
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2029 /* Skip float and double, could be
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2030 "unknown" float format */
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2031 if (ptr->format == 'd' || ptr->format == 'f')
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2032 break;
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2033 ptr->pack = native->pack;
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2034 ptr->unpack = native->unpack;
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2035 break;
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2036 }
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2037 ptr++;
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2038 }
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2039 native++;
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2040 }
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2041 }
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2042
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2043 /* Add some symbolic constants to the module */
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2044 if (StructError == NULL) {
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2045 StructError = PyErr_NewException("struct.error", NULL, NULL);
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2046 if (StructError == NULL)
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2047 return NULL;
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2048 }
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2049
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2050 Py_INCREF(StructError);
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2051 PyModule_AddObject(m, "error", StructError);
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2052
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2053 Py_INCREF((PyObject*)&PyStructType);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
2054 PyModule_AddObject(m, "Struct", (PyObject*)&PyStructType);
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19fd6141940d Partially merge trunk into p3yk. The removal of Mac/Tools is confusing svn
Thomas Wouters <thomas@python.org>
parents: 38453
diff changeset
2055
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60312
diff changeset
2056 return m;
38453
29ae5e0fc348 Much-needed merge (using svnmerge.py this time) of trunk changes into p3yk.
Thomas Wouters <thomas@python.org>
parents:
diff changeset
2057 }