Mercurial > cpython-lru_cache-weakref

annotate Objects/setobject.c @ 65989:458b05abf987

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author Antoine Pitrou <solipsis@pitrou.net>
date Fri, 05 Nov 2010 20:26:59 +0000
parents e996c61e47c7
children fee3a2f243e8
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1
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2 /* set object implementation
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3 Written and maintained by Raymond D. Hettinger <python@rcn.com>
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4 Derived from Lib/sets.py and Objects/dictobject.c.
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6 Copyright (c) 2003-2008 Python Software Foundation.
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7 All rights reserved.
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8 */
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9
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10 #include "Python.h"
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11 #include "structmember.h"
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12 #include "stringlib/eq.h"
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13
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14 /* Set a key error with the specified argument, wrapping it in a
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15 * tuple automatically so that tuple keys are not unpacked as the
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16 * exception arguments. */
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17 static void
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18 set_key_error(PyObject *arg)
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19 {
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20 PyObject *tup;
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21 tup = PyTuple_Pack(1, arg);
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22 if (!tup)
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23 return; /* caller will expect error to be set anyway */
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24 PyErr_SetObject(PyExc_KeyError, tup);
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25 Py_DECREF(tup);
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26 }
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27
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28 /* This must be >= 1. */
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29 #define PERTURB_SHIFT 5
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30
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31 /* Object used as dummy key to fill deleted entries */
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32 static PyObject *dummy = NULL; /* Initialized by first call to make_new_set() */
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33
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34 #ifdef Py_REF_DEBUG
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35 PyObject *
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36 _PySet_Dummy(void)
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37 {
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38 return dummy;
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39 }
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40 #endif
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41
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42 #define INIT_NONZERO_SET_SLOTS(so) do { \
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43 (so)->table = (so)->smalltable; \
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44 (so)->mask = PySet_MINSIZE - 1; \
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45 (so)->hash = -1; \
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46 } while(0)
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47
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48 #define EMPTY_TO_MINSIZE(so) do { \
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49 memset((so)->smalltable, 0, sizeof((so)->smalltable)); \
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50 (so)->used = (so)->fill = 0; \
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51 INIT_NONZERO_SET_SLOTS(so); \
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52 } while(0)
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53
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54 /* Reuse scheme to save calls to malloc, free, and memset */
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55 #ifndef PySet_MAXFREELIST
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56 #define PySet_MAXFREELIST 80
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57 #endif
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58 static PySetObject *free_list[PySet_MAXFREELIST];
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59 static int numfree = 0;
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62 /*
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63 The basic lookup function used by all operations.
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64 This is based on Algorithm D from Knuth Vol. 3, Sec. 6.4.
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65 Open addressing is preferred over chaining since the link overhead for
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66 chaining would be substantial (100% with typical malloc overhead).
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67
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68 The initial probe index is computed as hash mod the table size. Subsequent
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69 probe indices are computed as explained in Objects/dictobject.c.
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70
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71 All arithmetic on hash should ignore overflow.
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72
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73 Unlike the dictionary implementation, the lookkey functions can return
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74 NULL if the rich comparison returns an error.
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75 */
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76
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77 static setentry *
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78 set_lookkey(PySetObject *so, PyObject *key, register Py_hash_t hash)
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79 {
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80 register Py_ssize_t i;
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81 register size_t perturb;
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82 register setentry *freeslot;
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83 register size_t mask = so->mask;
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84 setentry *table = so->table;
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85 register setentry *entry;
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86 register int cmp;
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87 PyObject *startkey;
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88
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89 i = hash & mask;
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90 entry = &table[i];
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91 if (entry->key == NULL || entry->key == key)
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92 return entry;
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93
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94 if (entry->key == dummy)
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95 freeslot = entry;
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96 else {
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97 if (entry->hash == hash) {
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98 startkey = entry->key;
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99 Py_INCREF(startkey);
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100 cmp = PyObject_RichCompareBool(startkey, key, Py_EQ);
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101 Py_DECREF(startkey);
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102 if (cmp < 0)
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103 return NULL;
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104 if (table == so->table && entry->key == startkey) {
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105 if (cmp > 0)
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106 return entry;
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107 }
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108 else {
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109 /* The compare did major nasty stuff to the
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110 * set: start over.
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111 */
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112 return set_lookkey(so, key, hash);
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113 }
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114 }
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115 freeslot = NULL;
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116 }
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117
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118 /* In the loop, key == dummy is by far (factor of 100s) the
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119 least likely outcome, so test for that last. */
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120 for (perturb = hash; ; perturb >>= PERTURB_SHIFT) {
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121 i = (i << 2) + i + perturb + 1;
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122 entry = &table[i & mask];
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123 if (entry->key == NULL) {
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124 if (freeslot != NULL)
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125 entry = freeslot;
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126 break;
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127 }
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128 if (entry->key == key)
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129 break;
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130 if (entry->hash == hash && entry->key != dummy) {
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131 startkey = entry->key;
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132 Py_INCREF(startkey);
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133 cmp = PyObject_RichCompareBool(startkey, key, Py_EQ);
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134 Py_DECREF(startkey);
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135 if (cmp < 0)
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136 return NULL;
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137 if (table == so->table && entry->key == startkey) {
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138 if (cmp > 0)
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139 break;
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140 }
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141 else {
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142 /* The compare did major nasty stuff to the
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143 * set: start over.
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144 */
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145 return set_lookkey(so, key, hash);
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146 }
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147 }
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148 else if (entry->key == dummy && freeslot == NULL)
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149 freeslot = entry;
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150 }
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151 return entry;
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152 }
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153
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154 /*
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155 * Hacked up version of set_lookkey which can assume keys are always unicode;
444da08f78a4 Fixed issue #1564: The set implementation should special-case PyUnicode instead of PyString
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156 * This means we can always use unicode_eq directly and not have to check to
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157 * see if the comparison altered the table.
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158 */
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159 static setentry *
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160 set_lookkey_unicode(PySetObject *so, PyObject *key, register Py_hash_t hash)
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161 {
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162 register Py_ssize_t i;
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163 register size_t perturb;
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164 register setentry *freeslot;
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165 register size_t mask = so->mask;
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166 setentry *table = so->table;
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167 register setentry *entry;
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168
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169 /* Make sure this function doesn't have to handle non-unicode keys,
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170 including subclasses of str; e.g., one reason to subclass
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171 strings is to override __eq__, and for speed we don't cater to
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172 that here. */
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173 if (!PyUnicode_CheckExact(key)) {
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174 so->lookup = set_lookkey;
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175 return set_lookkey(so, key, hash);
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176 }
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177 i = hash & mask;
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178 entry = &table[i];
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179 if (entry->key == NULL || entry->key == key)
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180 return entry;
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181 if (entry->key == dummy)
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182 freeslot = entry;
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183 else {
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184 if (entry->hash == hash && unicode_eq(entry->key, key))
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185 return entry;
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186 freeslot = NULL;
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187 }
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188
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189 /* In the loop, key == dummy is by far (factor of 100s) the
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190 least likely outcome, so test for that last. */
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191 for (perturb = hash; ; perturb >>= PERTURB_SHIFT) {
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192 i = (i << 2) + i + perturb + 1;
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193 entry = &table[i & mask];
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194 if (entry->key == NULL)
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195 return freeslot == NULL ? entry : freeslot;
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196 if (entry->key == key
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197 || (entry->hash == hash
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198 && entry->key != dummy
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199 && unicode_eq(entry->key, key)))
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200 return entry;
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201 if (entry->key == dummy && freeslot == NULL)
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202 freeslot = entry;
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203 }
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204 assert(0); /* NOT REACHED */
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205 return 0;
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206 }
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207
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208 /*
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209 Internal routine to insert a new key into the table.
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210 Used by the public insert routine.
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211 Eats a reference to key.
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212 */
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213 static int
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214 set_insert_key(register PySetObject *so, PyObject *key, Py_hash_t hash)
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215 {
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216 register setentry *entry;
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217 typedef setentry *(*lookupfunc)(PySetObject *, PyObject *, Py_hash_t);
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218
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219 assert(so->lookup != NULL);
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220 entry = so->lookup(so, key, hash);
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221 if (entry == NULL)
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222 return -1;
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223 if (entry->key == NULL) {
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224 /* UNUSED */
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225 so->fill++;
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226 entry->key = key;
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227 entry->hash = hash;
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228 so->used++;
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229 } else if (entry->key == dummy) {
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230 /* DUMMY */
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231 entry->key = key;
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232 entry->hash = hash;
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233 so->used++;
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234 Py_DECREF(dummy);
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235 } else {
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236 /* ACTIVE */
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237 Py_DECREF(key);
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238 }
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239 return 0;
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240 }
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241
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242 /*
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243 Internal routine used by set_table_resize() to insert an item which is
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244 known to be absent from the set. This routine also assumes that
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245 the set contains no deleted entries. Besides the performance benefit,
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246 using set_insert_clean() in set_table_resize() is dangerous (SF bug #1456209).
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247 Note that no refcounts are changed by this routine; if needed, the caller
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248 is responsible for incref'ing `key`.
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249 */
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250 static void
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251 set_insert_clean(register PySetObject *so, PyObject *key, Py_hash_t hash)
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252 {
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253 register size_t i;
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254 register size_t perturb;
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255 register size_t mask = (size_t)so->mask;
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256 setentry *table = so->table;
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257 register setentry *entry;
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258
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259 i = hash & mask;
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260 entry = &table[i];
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261 for (perturb = hash; entry->key != NULL; perturb >>= PERTURB_SHIFT) {
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262 i = (i << 2) + i + perturb + 1;
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263 entry = &table[i & mask];
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264 }
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265 so->fill++;
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266 entry->key = key;
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267 entry->hash = hash;
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268 so->used++;
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269 }
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270
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271 /*
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272 Restructure the table by allocating a new table and reinserting all
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273 keys again. When entries have been deleted, the new table may
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274 actually be smaller than the old one.
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275 */
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276 static int
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277 set_table_resize(PySetObject *so, Py_ssize_t minused)
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278 {
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279 Py_ssize_t newsize;
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280 setentry *oldtable, *newtable, *entry;
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281 Py_ssize_t i;
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282 int is_oldtable_malloced;
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283 setentry small_copy[PySet_MINSIZE];
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284
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285 assert(minused >= 0);
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286
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287 /* Find the smallest table size > minused. */
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288 for (newsize = PySet_MINSIZE;
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289 newsize <= minused && newsize > 0;
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290 newsize <<= 1)
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291 ;
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292 if (newsize <= 0) {
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293 PyErr_NoMemory();
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294 return -1;
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295 }
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296
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297 /* Get space for a new table. */
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298 oldtable = so->table;
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299 assert(oldtable != NULL);
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300 is_oldtable_malloced = oldtable != so->smalltable;
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301
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302 if (newsize == PySet_MINSIZE) {
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303 /* A large table is shrinking, or we can't get any smaller. */
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304 newtable = so->smalltable;
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305 if (newtable == oldtable) {
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306 if (so->fill == so->used) {
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307 /* No dummies, so no point doing anything. */
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308 return 0;
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309 }
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310 /* We're not going to resize it, but rebuild the
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311 table anyway to purge old dummy entries.
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312 Subtle: This is *necessary* if fill==size,
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313 as set_lookkey needs at least one virgin slot to
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314 terminate failing searches. If fill < size, it's
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315 merely desirable, as dummies slow searches. */
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316 assert(so->fill > so->used);
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317 memcpy(small_copy, oldtable, sizeof(small_copy));
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318 oldtable = small_copy;
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319 }
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320 }
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321 else {
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322 newtable = PyMem_NEW(setentry, newsize);
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323 if (newtable == NULL) {
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324 PyErr_NoMemory();
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325 return -1;
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326 }
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327 }
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328
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329 /* Make the set empty, using the new table. */
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330 assert(newtable != oldtable);
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331 so->table = newtable;
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332 so->mask = newsize - 1;
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333 memset(newtable, 0, sizeof(setentry) * newsize);
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334 so->used = 0;
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335 i = so->fill;
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336 so->fill = 0;
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337
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338 /* Copy the data over; this is refcount-neutral for active entries;
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339 dummy entries aren't copied over, of course */
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340 for (entry = oldtable; i > 0; entry++) {
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341 if (entry->key == NULL) {
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342 /* UNUSED */
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343 ;
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344 } else if (entry->key == dummy) {
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345 /* DUMMY */
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346 --i;
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347 assert(entry->key == dummy);
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348 Py_DECREF(entry->key);
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349 } else {
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350 /* ACTIVE */
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351 --i;
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352 set_insert_clean(so, entry->key, entry->hash);
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353 }
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354 }
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355
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356 if (is_oldtable_malloced)
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357 PyMem_DEL(oldtable);
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358 return 0;
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359 }
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360
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361 /* CAUTION: set_add_key/entry() must guarantee it won't resize the table */
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362
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363 static int
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364 set_add_entry(register PySetObject *so, setentry *entry)
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365 {
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366 register Py_ssize_t n_used;
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367 PyObject *key = entry->key;
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368
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369 assert(so->fill <= so->mask); /* at least one empty slot */
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370 n_used = so->used;
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371 Py_INCREF(key);
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372 if (set_insert_key(so, key, entry->hash) == -1) {
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373 Py_DECREF(key);
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374 return -1;
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375 }
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376 if (!(so->used > n_used && so->fill*3 >= (so->mask+1)*2))
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377 return 0;
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378 return set_table_resize(so, so->used>50000 ? so->used*2 : so->used*4);
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379 }
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380
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381 static int
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382 set_add_key(register PySetObject *so, PyObject *key)
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383 {
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384 register Py_hash_t hash;
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385 register Py_ssize_t n_used;
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386
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387 if (!PyUnicode_CheckExact(key) ||
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388 (hash = ((PyUnicodeObject *) key)->hash) == -1) {
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389 hash = PyObject_Hash(key);
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390 if (hash == -1)
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391 return -1;
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392 }
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393 assert(so->fill <= so->mask); /* at least one empty slot */
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394 n_used = so->used;
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395 Py_INCREF(key);
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396 if (set_insert_key(so, key, hash) == -1) {
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397 Py_DECREF(key);
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398 return -1;
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399 }
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400 if (!(so->used > n_used && so->fill*3 >= (so->mask+1)*2))
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401 return 0;
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402 return set_table_resize(so, so->used>50000 ? so->used*2 : so->used*4);
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403 }
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404
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405 #define DISCARD_NOTFOUND 0
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406 #define DISCARD_FOUND 1
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407
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408 static int
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409 set_discard_entry(PySetObject *so, setentry *oldentry)
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410 { register setentry *entry;
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411 PyObject *old_key;
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412
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413 entry = (so->lookup)(so, oldentry->key, oldentry->hash);
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414 if (entry == NULL)
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415 return -1;
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416 if (entry->key == NULL || entry->key == dummy)
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417 return DISCARD_NOTFOUND;
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418 old_key = entry->key;
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419 Py_INCREF(dummy);
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420 entry->key = dummy;
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421 so->used--;
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422 Py_DECREF(old_key);
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423 return DISCARD_FOUND;
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424 }
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425
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426 static int
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427 set_discard_key(PySetObject *so, PyObject *key)
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428 {
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429 register Py_hash_t hash;
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430 register setentry *entry;
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431 PyObject *old_key;
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432
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433 assert (PyAnySet_Check(so));
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434
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435 if (!PyUnicode_CheckExact(key) ||
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436 (hash = ((PyUnicodeObject *) key)->hash) == -1) {
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437 hash = PyObject_Hash(key);
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438 if (hash == -1)
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439 return -1;
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440 }
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441 entry = (so->lookup)(so, key, hash);
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442 if (entry == NULL)
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443 return -1;
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444 if (entry->key == NULL || entry->key == dummy)
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445 return DISCARD_NOTFOUND;
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446 old_key = entry->key;
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447 Py_INCREF(dummy);
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448 entry->key = dummy;
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449 so->used--;
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450 Py_DECREF(old_key);
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451 return DISCARD_FOUND;
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452 }
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453
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454 static int
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455 set_clear_internal(PySetObject *so)
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456 {
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457 setentry *entry, *table;
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458 int table_is_malloced;
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459 Py_ssize_t fill;
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460 setentry small_copy[PySet_MINSIZE];
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461 #ifdef Py_DEBUG
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462 Py_ssize_t i, n;
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463 assert (PyAnySet_Check(so));
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464
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465 n = so->mask + 1;
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466 i = 0;
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467 #endif
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468
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469 table = so->table;
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470 assert(table != NULL);
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471 table_is_malloced = table != so->smalltable;
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472
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473 /* This is delicate. During the process of clearing the set,
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474 * decrefs can cause the set to mutate. To avoid fatal confusion
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475 * (voice of experience), we have to make the set empty before
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476 * clearing the slots, and never refer to anything via so->ref while
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477 * clearing.
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478 */
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479 fill = so->fill;
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480 if (table_is_malloced)
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481 EMPTY_TO_MINSIZE(so);
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482
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483 else if (fill > 0) {
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484 /* It's a small table with something that needs to be cleared.
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485 * Afraid the only safe way is to copy the set entries into
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486 * another small table first.
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487 */
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488 memcpy(small_copy, table, sizeof(small_copy));
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489 table = small_copy;
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490 EMPTY_TO_MINSIZE(so);
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491 }
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492 /* else it's a small table that's already empty */
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493
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494 /* Now we can finally clear things. If C had refcounts, we could
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495 * assert that the refcount on table is 1 now, i.e. that this function
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496 * has unique access to it, so decref side-effects can't alter it.
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497 */
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498 for (entry = table; fill > 0; ++entry) {
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499 #ifdef Py_DEBUG
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500 assert(i < n);
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501 ++i;
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502 #endif
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503 if (entry->key) {
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504 --fill;
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505 Py_DECREF(entry->key);
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506 }
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507 #ifdef Py_DEBUG
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508 else
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509 assert(entry->key == NULL);
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510 #endif
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511 }
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512
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513 if (table_is_malloced)
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514 PyMem_DEL(table);
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515 return 0;
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516 }
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517
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518 /*
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519 * Iterate over a set table. Use like so:
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520 *
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521 * Py_ssize_t pos;
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522 * setentry *entry;
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523 * pos = 0; # important! pos should not otherwise be changed by you
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524 * while (set_next(yourset, &pos, &entry)) {
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525 * Refer to borrowed reference in entry->key.
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526 * }
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527 *
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528 * CAUTION: In general, it isn't safe to use set_next in a loop that
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529 * mutates the table.
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530 */
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531 static int
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532 set_next(PySetObject *so, Py_ssize_t *pos_ptr, setentry **entry_ptr)
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533 {
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534 Py_ssize_t i;
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535 Py_ssize_t mask;
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536 register setentry *table;
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537
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538 assert (PyAnySet_Check(so));
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539 i = *pos_ptr;
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540 assert(i >= 0);
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541 table = so->table;
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542 mask = so->mask;
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543 while (i <= mask && (table[i].key == NULL || table[i].key == dummy))
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544 i++;
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545 *pos_ptr = i+1;
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546 if (i > mask)
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547 return 0;
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548 assert(table[i].key != NULL);
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549 *entry_ptr = &table[i];
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550 return 1;
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551 }
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552
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553 static void
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554 set_dealloc(PySetObject *so)
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555 {
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556 register setentry *entry;
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557 Py_ssize_t fill = so->fill;
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558 PyObject_GC_UnTrack(so);
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559 Py_TRASHCAN_SAFE_BEGIN(so)
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560 if (so->weakreflist != NULL)
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561 PyObject_ClearWeakRefs((PyObject *) so);
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562
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563 for (entry = so->table; fill > 0; entry++) {
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564 if (entry->key) {
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565 --fill;
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566 Py_DECREF(entry->key);
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567 }
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568 }
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569 if (so->table != so->smalltable)
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570 PyMem_DEL(so->table);
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571 if (numfree < PySet_MAXFREELIST && PyAnySet_CheckExact(so))
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572 free_list[numfree++] = so;
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573 else
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574 Py_TYPE(so)->tp_free(so);
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575 Py_TRASHCAN_SAFE_END(so)
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576 }
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577
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578 static PyObject *
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579 set_repr(PySetObject *so)
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580 {
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581 PyObject *keys, *result=NULL;
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582 Py_UNICODE *u;
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583 int status = Py_ReprEnter((PyObject*)so);
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584 PyObject *listrepr;
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585 Py_ssize_t newsize;
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586
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587 if (status != 0) {
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588 if (status < 0)
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589 return NULL;
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590 return PyUnicode_FromFormat("%s(...)", Py_TYPE(so)->tp_name);
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591 }
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592
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593 /* shortcut for the empty set */
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594 if (!so->used) {
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595 Py_ReprLeave((PyObject*)so);
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596 return PyUnicode_FromFormat("%s()", Py_TYPE(so)->tp_name);
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597 }
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598
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599 keys = PySequence_List((PyObject *)so);
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600 if (keys == NULL)
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601 goto done;
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602
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603 listrepr = PyObject_Repr(keys);
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604 Py_DECREF(keys);
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605 if (listrepr == NULL)
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606 goto done;
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607 newsize = PyUnicode_GET_SIZE(listrepr);
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608 result = PyUnicode_FromUnicode(NULL, newsize);
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609 if (result) {
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610 u = PyUnicode_AS_UNICODE(result);
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611 *u++ = '{';
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612 /* Omit the brackets from the listrepr */
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613 Py_UNICODE_COPY(u, PyUnicode_AS_UNICODE(listrepr)+1,
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614 PyUnicode_GET_SIZE(listrepr)-2);
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615 u += newsize-2;
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616 *u++ = '}';
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617 }
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618 Py_DECREF(listrepr);
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619 if (Py_TYPE(so) != &PySet_Type) {
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620 PyObject *tmp = PyUnicode_FromFormat("%s(%U)",
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621 Py_TYPE(so)->tp_name,
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622 result);
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623 Py_DECREF(result);
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624 result = tmp;
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625 }
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626 done:
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627 Py_ReprLeave((PyObject*)so);
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628 return result;
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629 }
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630
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631 static Py_ssize_t
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632 set_len(PyObject *so)
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633 {
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634 return ((PySetObject *)so)->used;
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635 }
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636
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637 static int
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638 set_merge(PySetObject *so, PyObject *otherset)
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639 {
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640 PySetObject *other;
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641 PyObject *key;
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642 register Py_ssize_t i;
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643 register setentry *entry;
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644
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645 assert (PyAnySet_Check(so));
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646 assert (PyAnySet_Check(otherset));
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647
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648 other = (PySetObject*)otherset;
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649 if (other == so || other->used == 0)
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650 /* a.update(a) or a.update({}); nothing to do */
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651 return 0;
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652 /* Do one big resize at the start, rather than
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653 * incrementally resizing as we insert new keys. Expect
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654 * that there will be no (or few) overlapping keys.
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655 */
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656 if ((so->fill + other->used)*3 >= (so->mask+1)*2) {
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657 if (set_table_resize(so, (so->used + other->used)*2) != 0)
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658 return -1;
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659 }
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660 for (i = 0; i <= other->mask; i++) {
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661 entry = &other->table[i];
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662 key = entry->key;
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663 if (key != NULL &&
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664 key != dummy) {
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665 Py_INCREF(key);
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666 if (set_insert_key(so, key, entry->hash) == -1) {
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667 Py_DECREF(key);
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668 return -1;
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669 }
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670 }
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671 }
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672 return 0;
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673 }
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674
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675 static int
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676 set_contains_key(PySetObject *so, PyObject *key)
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677 {
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678 Py_hash_t hash;
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679 setentry *entry;
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680
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681 if (!PyUnicode_CheckExact(key) ||
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682 (hash = ((PyUnicodeObject *) key)->hash) == -1) {
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683 hash = PyObject_Hash(key);
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684 if (hash == -1)
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685 return -1;
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686 }
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687 entry = (so->lookup)(so, key, hash);
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688 if (entry == NULL)
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689 return -1;
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690 key = entry->key;
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691 return key != NULL && key != dummy;
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692 }
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693
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694 static int
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695 set_contains_entry(PySetObject *so, setentry *entry)
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diff changeset
696 {
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697 PyObject *key;
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698 setentry *lu_entry;
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699
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diff changeset
700 lu_entry = (so->lookup)(so, entry->key, entry->hash);
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701 if (lu_entry == NULL)
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702 return -1;
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703 key = lu_entry->key;
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704 return key != NULL && key != dummy;
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705 }
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706
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707 static PyObject *
f6b462d2a3a3 More function re-ordering (placing like functions together).
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parents: 35339
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708 set_pop(PySetObject *so)
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709 {
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710 register Py_ssize_t i = 0;
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711 register setentry *entry;
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712 PyObject *key;
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713
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714 assert (PyAnySet_Check(so));
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715 if (so->used == 0) {
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716 PyErr_SetString(PyExc_KeyError, "pop from an empty set");
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717 return NULL;
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718 }
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719
61466
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720 /* Set entry to "the first" unused or dummy set entry. We abuse
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721 * the hash field of slot 0 to hold a search finger:
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722 * If slot 0 has a value, use slot 0.
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723 * Else slot 0 is being used to hold a search finger,
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724 * and we use its hash value as the first index to look.
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725 */
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726 entry = &so->table[0];
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727 if (entry->key == NULL || entry->key == dummy) {
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728 i = entry->hash;
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729 /* The hash field may be a real hash value, or it may be a
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730 * legit search finger, or it may be a once-legit search
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diff changeset
731 * finger that's out of bounds now because it wrapped around
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732 * or the table shrunk -- simply make sure it's in bounds now.
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diff changeset
733 */
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diff changeset
734 if (i > so->mask || i < 1)
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diff changeset
735 i = 1; /* skip slot 0 */
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diff changeset
736 while ((entry = &so->table[i])->key == NULL || entry->key==dummy) {
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737 i++;
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diff changeset
738 if (i > so->mask)
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739 i = 1;
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740 }
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741 }
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742 key = entry->key;
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diff changeset
743 Py_INCREF(dummy);
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744 entry->key = dummy;
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745 so->used--;
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diff changeset
746 so->table[0].hash = i + 1; /* next place to start */
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diff changeset
747 return key;
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f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
748 }
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
749
49493
bdf4da5d04ad merge from trunk
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parents: 48660
diff changeset
750 PyDoc_STRVAR(pop_doc, "Remove and return an arbitrary set element.\n\
bdf4da5d04ad merge from trunk
Benjamin Peterson <benjamin@python.org>
parents: 48660
diff changeset
751 Raises KeyError if the set is empty.");
35341
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
752
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
753 static int
35349
6f1cd28d6b87 Results of a line-by-line comparison back to dictobject.c.
Raymond Hettinger <python@rcn.com>
parents: 35348
diff changeset
754 set_traverse(PySetObject *so, visitproc visit, void *arg)
6f1cd28d6b87 Results of a line-by-line comparison back to dictobject.c.
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parents: 35348
diff changeset
755 {
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756 Py_ssize_t pos = 0;
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diff changeset
757 setentry *entry;
35349
6f1cd28d6b87 Results of a line-by-line comparison back to dictobject.c.
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parents: 35348
diff changeset
758
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759 while (set_next(so, &pos, &entry))
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diff changeset
760 Py_VISIT(entry->key);
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diff changeset
761 return 0;
35349
6f1cd28d6b87 Results of a line-by-line comparison back to dictobject.c.
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parents: 35348
diff changeset
762 }
6f1cd28d6b87 Results of a line-by-line comparison back to dictobject.c.
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parents: 35348
diff changeset
763
65494
e8969fb822fc make hashes always the size of pointers; introduce Py_hash_t #9778
Benjamin Peterson <benjamin@python.org>
parents: 64390
diff changeset
764 static Py_hash_t
35349
6f1cd28d6b87 Results of a line-by-line comparison back to dictobject.c.
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parents: 35348
diff changeset
765 frozenset_hash(PyObject *self)
35341
f6b462d2a3a3 More function re-ordering (placing like functions together).
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parents: 35339
diff changeset
766 {
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diff changeset
767 PySetObject *so = (PySetObject *)self;
65494
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parents: 64390
diff changeset
768 Py_hash_t h, hash = 1927868237L;
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diff changeset
769 setentry *entry;
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diff changeset
770 Py_ssize_t pos = 0;
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diff changeset
771
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772 if (so->hash != -1)
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773 return so->hash;
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parents: 35348
diff changeset
774
65608
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diff changeset
775 hash *= PySet_GET_SIZE(self) + 1;
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diff changeset
776 while (set_next(so, &pos, &entry)) {
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diff changeset
777 /* Work to increase the bit dispersion for closely spaced hash
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778 values. The is important because some use cases have many
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779 combinations of a small number of elements with nearby
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780 hashes so that many distinct combinations collapse to only
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781 a handful of distinct hash values. */
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diff changeset
782 h = entry->hash;
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783 hash ^= (h ^ (h << 16) ^ 89869747L) * 3644798167u;
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diff changeset
784 }
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diff changeset
785 hash = hash * 69069L + 907133923L;
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diff changeset
786 if (hash == -1)
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diff changeset
787 hash = 590923713L;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
788 so->hash = hash;
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diff changeset
789 return hash;
35349
6f1cd28d6b87 Results of a line-by-line comparison back to dictobject.c.
Raymond Hettinger <python@rcn.com>
parents: 35348
diff changeset
790 }
6f1cd28d6b87 Results of a line-by-line comparison back to dictobject.c.
Raymond Hettinger <python@rcn.com>
parents: 35348
diff changeset
791
35311
541bfbb10030 * Move copyright notice to top and indicate derivation from sets.py and
Raymond Hettinger <python@rcn.com>
parents: 35301
diff changeset
792 /***** Set iterator type ***********************************************/
35292
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
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diff changeset
793
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
parents: 35110
diff changeset
794 typedef struct {
61466
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795 PyObject_HEAD
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diff changeset
796 PySetObject *si_set; /* Set to NULL when iterator is exhausted */
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diff changeset
797 Py_ssize_t si_used;
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diff changeset
798 Py_ssize_t si_pos;
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diff changeset
799 Py_ssize_t len;
35292
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
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diff changeset
800 } setiterobject;
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
parents: 35110
diff changeset
801
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
parents: 35110
diff changeset
802 static void
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
parents: 35110
diff changeset
803 setiter_dealloc(setiterobject *si)
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
parents: 35110
diff changeset
804 {
61466
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diff changeset
805 Py_XDECREF(si->si_set);
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diff changeset
806 PyObject_GC_Del(si);
50553
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Georg Brandl <georg@python.org>
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diff changeset
807 }
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808
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809 static int
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Georg Brandl <georg@python.org>
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diff changeset
810 setiter_traverse(setiterobject *si, visitproc visit, void *arg)
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diff changeset
811 {
61466
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812 Py_VISIT(si->si_set);
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diff changeset
813 return 0;
35292
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814 }
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
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815
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
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816 static PyObject *
35292
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817 setiter_len(setiterobject *si)
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818 {
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819 Py_ssize_t len = 0;
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820 if (si->si_set != NULL && si->si_used == si->si_set->used)
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821 len = si->len;
64116
ee3dcdfe2f87 Issue #9612: The set object is now 64-bit clean under Windows.
Antoine Pitrou <solipsis@pitrou.net>
parents: 63768
diff changeset
822 return PyLong_FromSsize_t(len);
35292
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823 }
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
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824
36484
20f75d5e79e9 Renamed _length_cue() to __length_hint__(). See:
Armin Rigo <arigo@tunes.org>
parents: 36244
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825 PyDoc_STRVAR(length_hint_doc, "Private method returning an estimate of len(list(it)).");
35636
e22334b1da67 Convert iterator __len__() methods to a private API.
Raymond Hettinger <python@rcn.com>
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826
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827 static PyMethodDef setiter_methods[] = {
61466
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828 {"__length_hint__", (PyCFunction)setiter_len, METH_NOARGS, length_hint_doc},
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829 {NULL, NULL} /* sentinel */
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830 };
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
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831
35295
f30ebdc3bddf Improve variable names.
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diff changeset
832 static PyObject *setiter_iternext(setiterobject *si)
35292
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833 {
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834 PyObject *key;
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835 register Py_ssize_t i, mask;
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836 register setentry *entry;
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837 PySetObject *so = si->si_set;
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838
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839 if (so == NULL)
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840 return NULL;
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841 assert (PyAnySet_Check(so));
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842
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843 if (si->si_used != so->used) {
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844 PyErr_SetString(PyExc_RuntimeError,
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845 "Set changed size during iteration");
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846 si->si_used = -1; /* Make this state sticky */
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847 return NULL;
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848 }
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849
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850 i = si->si_pos;
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851 assert(i>=0);
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852 entry = so->table;
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853 mask = so->mask;
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854 while (i <= mask && (entry[i].key == NULL || entry[i].key == dummy))
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855 i++;
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856 si->si_pos = i+1;
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857 if (i > mask)
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858 goto fail;
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859 si->len--;
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860 key = entry[i].key;
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861 Py_INCREF(key);
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862 return key;
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863
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
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864 fail:
61466
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865 Py_DECREF(so);
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866 si->si_set = NULL;
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867 return NULL;
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868 }
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
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869
44061
0cc552ab76bd Added all PyTypeObjects to the appropriate header files.
Christian Heimes <christian@cheimes.de>
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diff changeset
870 PyTypeObject PySetIter_Type = {
61466
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871 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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872 "set_iterator", /* tp_name */
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873 sizeof(setiterobject), /* tp_basicsize */
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diff changeset
874 0, /* tp_itemsize */
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875 /* methods */
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876 (destructor)setiter_dealloc, /* tp_dealloc */
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877 0, /* tp_print */
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878 0, /* tp_getattr */
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879 0, /* tp_setattr */
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880 0, /* tp_reserved */
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881 0, /* tp_repr */
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882 0, /* tp_as_number */
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883 0, /* tp_as_sequence */
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884 0, /* tp_as_mapping */
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885 0, /* tp_hash */
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886 0, /* tp_call */
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887 0, /* tp_str */
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888 PyObject_GenericGetAttr, /* tp_getattro */
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889 0, /* tp_setattro */
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890 0, /* tp_as_buffer */
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891 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC,/* tp_flags */
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892 0, /* tp_doc */
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893 (traverseproc)setiter_traverse, /* tp_traverse */
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894 0, /* tp_clear */
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895 0, /* tp_richcompare */
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896 0, /* tp_weaklistoffset */
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897 PyObject_SelfIter, /* tp_iter */
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898 (iternextfunc)setiter_iternext, /* tp_iternext */
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diff changeset
899 setiter_methods, /* tp_methods */
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900 0,
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901 };
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
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902
37879
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
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diff changeset
903 static PyObject *
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904 set_iter(PySetObject *so)
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905 {
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906 setiterobject *si = PyObject_GC_New(setiterobject, &PySetIter_Type);
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907 if (si == NULL)
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908 return NULL;
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909 Py_INCREF(so);
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910 si->si_set = so;
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911 si->si_used = so->used;
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912 si->si_pos = 0;
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913 si->len = so->used;
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914 _PyObject_GC_TRACK(si);
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915 return (PyObject *)si;
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916 }
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917
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918 static int
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919 set_update_internal(PySetObject *so, PyObject *other)
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920 {
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921 PyObject *key, *it;
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922
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923 if (PyAnySet_Check(other))
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924 return set_merge(so, other);
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925
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926 if (PyDict_CheckExact(other)) {
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927 PyObject *value;
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diff changeset
928 Py_ssize_t pos = 0;
65494
e8969fb822fc make hashes always the size of pointers; introduce Py_hash_t #9778
Benjamin Peterson <benjamin@python.org>
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diff changeset
929 Py_hash_t hash;
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930 Py_ssize_t dictsize = PyDict_Size(other);
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931
61466
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932 /* Do one big resize at the start, rather than
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933 * incrementally resizing as we insert new keys. Expect
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diff changeset
934 * that there will be no (or few) overlapping keys.
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935 */
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936 if (dictsize == -1)
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937 return -1;
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938 if ((so->fill + dictsize)*3 >= (so->mask+1)*2) {
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939 if (set_table_resize(so, (so->used + dictsize)*2) != 0)
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940 return -1;
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941 }
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942 while (_PyDict_Next(other, &pos, &key, &value, &hash)) {
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943 setentry an_entry;
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944
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945 an_entry.hash = hash;
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946 an_entry.key = key;
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947 if (set_add_entry(so, &an_entry) == -1)
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948 return -1;
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949 }
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950 return 0;
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951 }
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952
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953 it = PyObject_GetIter(other);
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954 if (it == NULL)
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955 return -1;
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956
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957 while ((key = PyIter_Next(it)) != NULL) {
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958 if (set_add_key(so, key) == -1) {
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959 Py_DECREF(it);
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960 Py_DECREF(key);
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961 return -1;
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962 }
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963 Py_DECREF(key);
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964 }
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965 Py_DECREF(it);
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966 if (PyErr_Occurred())
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967 return -1;
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968 return 0;
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969 }
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970
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971 static PyObject *
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972 set_update(PySetObject *so, PyObject *args)
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973 {
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974 Py_ssize_t i;
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975
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976 for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) {
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977 PyObject *other = PyTuple_GET_ITEM(args, i);
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978 if (set_update_internal(so, other) == -1)
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979 return NULL;
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980 }
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981 Py_RETURN_NONE;
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982 }
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983
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984 PyDoc_STRVAR(update_doc,
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985 "Update a set with the union of itself and others.");
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986
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987 static PyObject *
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988 make_new_set(PyTypeObject *type, PyObject *iterable)
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989 {
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990 register PySetObject *so = NULL;
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991
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992 if (dummy == NULL) { /* Auto-initialize dummy */
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993 dummy = PyUnicode_FromString("<dummy key>");
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994 if (dummy == NULL)
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995 return NULL;
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996 }
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997
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998 /* create PySetObject structure */
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999 if (numfree &&
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1000 (type == &PySet_Type || type == &PyFrozenSet_Type)) {
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1001 so = free_list[--numfree];
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1002 assert (so != NULL && PyAnySet_CheckExact(so));
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1003 Py_TYPE(so) = type;
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1004 _Py_NewReference((PyObject *)so);
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1005 EMPTY_TO_MINSIZE(so);
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1006 PyObject_GC_Track(so);
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1007 } else {
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1008 so = (PySetObject *)type->tp_alloc(type, 0);
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1009 if (so == NULL)
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1010 return NULL;
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1011 /* tp_alloc has already zeroed the structure */
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1012 assert(so->table == NULL && so->fill == 0 && so->used == 0);
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1013 INIT_NONZERO_SET_SLOTS(so);
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1014 }
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1015
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1016 so->lookup = set_lookkey_unicode;
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1017 so->weakreflist = NULL;
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1018
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1019 if (iterable != NULL) {
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1020 if (set_update_internal(so, iterable) == -1) {
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1021 Py_DECREF(so);
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1022 return NULL;
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1023 }
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1024 }
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1025
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1026 return (PyObject *)so;
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1027 }
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1028
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1029 static PyObject *
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1030 make_new_set_basetype(PyTypeObject *type, PyObject *iterable)
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1031 {
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1032 if (type != &PySet_Type && type != &PyFrozenSet_Type) {
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1033 if (PyType_IsSubtype(type, &PySet_Type))
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1034 type = &PySet_Type;
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1035 else
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1036 type = &PyFrozenSet_Type;
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1037 }
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1038 return make_new_set(type, iterable);
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1039 }
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1040
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1041 /* The empty frozenset is a singleton */
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1042 static PyObject *emptyfrozenset = NULL;
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1043
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1044 static PyObject *
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1045 frozenset_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
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1046 {
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1047 PyObject *iterable = NULL, *result;
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1048
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1049 if (type == &PyFrozenSet_Type && !_PyArg_NoKeywords("frozenset()", kwds))
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diff changeset
1050 return NULL;
35449
1fdfd0130e28 Disallow keyword arguments for type constructors that don't use them.
Georg Brandl <georg@python.org>
parents: 35398
diff changeset
1051
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1052 if (!PyArg_UnpackTuple(args, type->tp_name, 0, 1, &iterable))
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diff changeset
1053 return NULL;
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diff changeset
1054
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diff changeset
1055 if (type != &PyFrozenSet_Type)
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diff changeset
1056 return make_new_set(type, iterable);
35297
26bf6c27e9ce * Improve code for the empty frozenset singleton:
Raymond Hettinger <python@rcn.com>
parents: 35296
diff changeset
1057
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diff changeset
1058 if (iterable != NULL) {
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diff changeset
1059 /* frozenset(f) is idempotent */
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diff changeset
1060 if (PyFrozenSet_CheckExact(iterable)) {
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diff changeset
1061 Py_INCREF(iterable);
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diff changeset
1062 return iterable;
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diff changeset
1063 }
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1064 result = make_new_set(type, iterable);
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1065 if (result == NULL || PySet_GET_SIZE(result))
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1066 return result;
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1067 Py_DECREF(result);
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1068 }
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1069 /* The empty frozenset is a singleton */
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1070 if (emptyfrozenset == NULL)
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1071 emptyfrozenset = make_new_set(type, NULL);
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1072 Py_XINCREF(emptyfrozenset);
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diff changeset
1073 return emptyfrozenset;
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Raymond Hettinger <python@rcn.com>
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diff changeset
1074 }
26bf6c27e9ce * Improve code for the empty frozenset singleton:
Raymond Hettinger <python@rcn.com>
parents: 35296
diff changeset
1075
26bf6c27e9ce * Improve code for the empty frozenset singleton:
Raymond Hettinger <python@rcn.com>
parents: 35296
diff changeset
1076 void
26bf6c27e9ce * Improve code for the empty frozenset singleton:
Raymond Hettinger <python@rcn.com>
parents: 35296
diff changeset
1077 PySet_Fini(void)
26bf6c27e9ce * Improve code for the empty frozenset singleton:
Raymond Hettinger <python@rcn.com>
parents: 35296
diff changeset
1078 {
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1079 PySetObject *so;
35321
bdcb01a9b60c * Bring in INIT_NONZERO_SET_SLOTS macro from dictionary code.
Raymond Hettinger <python@rcn.com>
parents: 35317
diff changeset
1080
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1081 while (numfree) {
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1082 numfree--;
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diff changeset
1083 so = free_list[numfree];
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1084 PyObject_GC_Del(so);
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1085 }
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1086 Py_CLEAR(dummy);
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diff changeset
1087 Py_CLEAR(emptyfrozenset);
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1088 }
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1089
30931
fa6e8d4f88c6 Various fixups (most suggested by Armin Rigo).
Raymond Hettinger <python@rcn.com>
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diff changeset
1090 static PyObject *
fa6e8d4f88c6 Various fixups (most suggested by Armin Rigo).
Raymond Hettinger <python@rcn.com>
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diff changeset
1091 set_new(PyTypeObject *type, PyObject *args, PyObject *kwds)
fa6e8d4f88c6 Various fixups (most suggested by Armin Rigo).
Raymond Hettinger <python@rcn.com>
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1092 {
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1093 if (type == &PySet_Type && !_PyArg_NoKeywords("set()", kwds))
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1094 return NULL;
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1095
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1096 return make_new_set(type, NULL);
30931
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Raymond Hettinger <python@rcn.com>
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diff changeset
1097 }
fa6e8d4f88c6 Various fixups (most suggested by Armin Rigo).
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diff changeset
1098
35293
8fffb4c95487 Comment on the set_swap_bodies() helper function.
Raymond Hettinger <python@rcn.com>
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diff changeset
1099 /* set_swap_bodies() switches the contents of any two sets by moving their
8fffb4c95487 Comment on the set_swap_bodies() helper function.
Raymond Hettinger <python@rcn.com>
parents: 35292
diff changeset
1100 internal data pointers and, if needed, copying the internal smalltables.
8fffb4c95487 Comment on the set_swap_bodies() helper function.
Raymond Hettinger <python@rcn.com>
parents: 35292
diff changeset
1101 Semantically equivalent to:
8fffb4c95487 Comment on the set_swap_bodies() helper function.
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1102
8fffb4c95487 Comment on the set_swap_bodies() helper function.
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1103 t=set(a); a.clear(); a.update(b); b.clear(); b.update(t); del t
8fffb4c95487 Comment on the set_swap_bodies() helper function.
Raymond Hettinger <python@rcn.com>
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diff changeset
1104
8fffb4c95487 Comment on the set_swap_bodies() helper function.
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diff changeset
1105 The function always succeeds and it leaves both objects in a stable state.
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1106 Useful for creating temporary frozensets from sets for membership testing
35293
8fffb4c95487 Comment on the set_swap_bodies() helper function.
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1107 in __contains__(), discard(), and remove(). Also useful for operations
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1108 that update in-place (by allowing an intermediate result to be swapped
35294
3f1b48f9ff0d Fix frozenset() ref count and a comment typo.
Raymond Hettinger <python@rcn.com>
parents: 35293
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1109 into one of the original inputs).
35293
8fffb4c95487 Comment on the set_swap_bodies() helper function.
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1110 */
8fffb4c95487 Comment on the set_swap_bodies() helper function.
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diff changeset
1111
35292
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1112 static void
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1113 set_swap_bodies(PySetObject *a, PySetObject *b)
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diff changeset
1114 {
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1115 Py_ssize_t t;
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diff changeset
1116 setentry *u;
65494
e8969fb822fc make hashes always the size of pointers; introduce Py_hash_t #9778
Benjamin Peterson <benjamin@python.org>
parents: 64390
diff changeset
1117 setentry *(*f)(PySetObject *so, PyObject *key, Py_ssize_t hash);
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1118 setentry tab[PySet_MINSIZE];
65608
e996c61e47c7 Follow up to #9778: fix regressions on 64-bit Windows builds
Antoine Pitrou <solipsis@pitrou.net>
parents: 65512
diff changeset
1119 Py_hash_t h;
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1120
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1121 t = a->fill; a->fill = b->fill; b->fill = t;
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1122 t = a->used; a->used = b->used; b->used = t;
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diff changeset
1123 t = a->mask; a->mask = b->mask; b->mask = t;
35292
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1124
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1125 u = a->table;
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1126 if (a->table == a->smalltable)
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1127 u = b->smalltable;
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diff changeset
1128 a->table = b->table;
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diff changeset
1129 if (b->table == b->smalltable)
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diff changeset
1130 a->table = a->smalltable;
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diff changeset
1131 b->table = u;
35292
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diff changeset
1132
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diff changeset
1133 f = a->lookup; a->lookup = b->lookup; b->lookup = f;
35292
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
parents: 35110
diff changeset
1134
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diff changeset
1135 if (a->table == a->smalltable || b->table == b->smalltable) {
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diff changeset
1136 memcpy(tab, a->smalltable, sizeof(tab));
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diff changeset
1137 memcpy(a->smalltable, b->smalltable, sizeof(tab));
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diff changeset
1138 memcpy(b->smalltable, tab, sizeof(tab));
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diff changeset
1139 }
35292
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diff changeset
1140
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1141 if (PyType_IsSubtype(Py_TYPE(a), &PyFrozenSet_Type) &&
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1142 PyType_IsSubtype(Py_TYPE(b), &PyFrozenSet_Type)) {
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diff changeset
1143 h = a->hash; a->hash = b->hash; b->hash = h;
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1144 } else {
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1145 a->hash = -1;
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1146 b->hash = -1;
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1147 }
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diff changeset
1148 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
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diff changeset
1149
31172
e4fb6164158c * Added a new method flag, METH_COEXIST.
Raymond Hettinger <python@rcn.com>
parents: 31019
diff changeset
1150 static PyObject *
30929
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diff changeset
1151 set_copy(PySetObject *so)
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diff changeset
1152 {
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1153 return make_new_set_basetype(Py_TYPE(so), (PyObject *)so);
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diff changeset
1154 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
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diff changeset
1155
31004
5b77bc4d25b1 * Simplify hash function and add test to show effectiveness of the hash
Raymond Hettinger <python@rcn.com>
parents: 31002
diff changeset
1156 static PyObject *
5b77bc4d25b1 * Simplify hash function and add test to show effectiveness of the hash
Raymond Hettinger <python@rcn.com>
parents: 31002
diff changeset
1157 frozenset_copy(PySetObject *so)
5b77bc4d25b1 * Simplify hash function and add test to show effectiveness of the hash
Raymond Hettinger <python@rcn.com>
parents: 31002
diff changeset
1158 {
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1159 if (PyFrozenSet_CheckExact(so)) {
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1160 Py_INCREF(so);
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1161 return (PyObject *)so;
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1162 }
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1163 return set_copy(so);
31004
5b77bc4d25b1 * Simplify hash function and add test to show effectiveness of the hash
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1164 }
5b77bc4d25b1 * Simplify hash function and add test to show effectiveness of the hash
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parents: 31002
diff changeset
1165
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Raymond Hettinger <python@rcn.com>
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diff changeset
1166 PyDoc_STRVAR(copy_doc, "Return a shallow copy of a set.");
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1167
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
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diff changeset
1168 static PyObject *
35328
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
Raymond Hettinger <python@rcn.com>
parents: 35321
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1169 set_clear(PySetObject *so)
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
Raymond Hettinger <python@rcn.com>
parents: 35321
diff changeset
1170 {
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1171 set_clear_internal(so);
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1172 Py_RETURN_NONE;
35328
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1173 }
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
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diff changeset
1174
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1175 PyDoc_STRVAR(clear_doc, "Remove all elements from this set.");
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diff changeset
1176
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1177 static PyObject *
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1178 set_union(PySetObject *so, PyObject *args)
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1179 {
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1180 PySetObject *result;
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1181 PyObject *other;
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1182 Py_ssize_t i;
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1183
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1184 result = (PySetObject *)set_copy(so);
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1185 if (result == NULL)
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1186 return NULL;
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1187
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1188 for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) {
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1189 other = PyTuple_GET_ITEM(args, i);
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1190 if ((PyObject *)so == other)
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1191 continue;
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1192 if (set_update_internal(result, other) == -1) {
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1193 Py_DECREF(result);
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1194 return NULL;
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1195 }
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1196 }
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1197 return (PyObject *)result;
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1198 }
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1199
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1200 PyDoc_STRVAR(union_doc,
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1201 "Return the union of sets as a new set.\n\
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1202 \n\
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1203 (i.e. all elements that are in either set.)");
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1204
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1205 static PyObject *
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1206 set_or(PySetObject *so, PyObject *other)
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1207 {
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1208 PySetObject *result;
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1209
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1210 if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) {
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1211 Py_INCREF(Py_NotImplemented);
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1212 return Py_NotImplemented;
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1213 }
31008
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1214
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1215 result = (PySetObject *)set_copy(so);
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1216 if (result == NULL)
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1217 return NULL;
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1218 if ((PyObject *)so == other)
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1219 return (PyObject *)result;
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1220 if (set_update_internal(result, other) == -1) {
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1221 Py_DECREF(result);
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1222 return NULL;
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1223 }
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1224 return (PyObject *)result;
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1225 }
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1226
30929
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1227 static PyObject *
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1228 set_ior(PySetObject *so, PyObject *other)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
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1229 {
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1230 if (!PyAnySet_Check(other)) {
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1231 Py_INCREF(Py_NotImplemented);
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1232 return Py_NotImplemented;
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1233 }
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1234 if (set_update_internal(so, other) == -1)
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1235 return NULL;
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1236 Py_INCREF(so);
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1237 return (PyObject *)so;
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1238 }
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diff changeset
1239
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diff changeset
1240 static PyObject *
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
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diff changeset
1241 set_intersection(PySetObject *so, PyObject *other)
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1242 {
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1243 PySetObject *result;
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1244 PyObject *key, *it, *tmp;
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1245
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1246 if ((PyObject *)so == other)
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1247 return set_copy(so);
35328
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1248
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1249 result = (PySetObject *)make_new_set_basetype(Py_TYPE(so), NULL);
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1250 if (result == NULL)
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1251 return NULL;
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1252
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1253 if (PyAnySet_Check(other)) {
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1254 Py_ssize_t pos = 0;
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1255 setentry *entry;
35332
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1256
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1257 if (PySet_GET_SIZE(other) > PySet_GET_SIZE(so)) {
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1258 tmp = (PyObject *)so;
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1259 so = (PySetObject *)other;
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1260 other = tmp;
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1261 }
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1262
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1263 while (set_next((PySetObject *)other, &pos, &entry)) {
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1264 int rv = set_contains_entry(so, entry);
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1265 if (rv == -1) {
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1266 Py_DECREF(result);
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1267 return NULL;
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1268 }
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1269 if (rv) {
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1270 if (set_add_entry(result, entry) == -1) {
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1271 Py_DECREF(result);
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1272 return NULL;
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1273 }
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1274 }
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1275 }
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1276 return (PyObject *)result;
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1277 }
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1278
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1279 it = PyObject_GetIter(other);
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1280 if (it == NULL) {
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1281 Py_DECREF(result);
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1282 return NULL;
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1283 }
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1284
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1285 while ((key = PyIter_Next(it)) != NULL) {
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1286 int rv;
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1287 setentry entry;
65494
e8969fb822fc make hashes always the size of pointers; introduce Py_hash_t #9778
Benjamin Peterson <benjamin@python.org>
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diff changeset
1288 Py_hash_t hash = PyObject_Hash(key);
40450
cc992d75d5b3 Four months of trunk changes (including a few releases...)
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1289
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1290 if (hash == -1) {
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1291 Py_DECREF(it);
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1292 Py_DECREF(result);
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1293 Py_DECREF(key);
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1294 return NULL;
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1295 }
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1296 entry.hash = hash;
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1297 entry.key = key;
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1298 rv = set_contains_entry(so, &entry);
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1299 if (rv == -1) {
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1300 Py_DECREF(it);
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1301 Py_DECREF(result);
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1302 Py_DECREF(key);
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1303 return NULL;
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1304 }
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1305 if (rv) {
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1306 if (set_add_entry(result, &entry) == -1) {
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1307 Py_DECREF(it);
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1308 Py_DECREF(result);
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1309 Py_DECREF(key);
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1310 return NULL;
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1311 }
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1312 }
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1313 Py_DECREF(key);
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1314 }
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1315 Py_DECREF(it);
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1316 if (PyErr_Occurred()) {
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1317 Py_DECREF(result);
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1318 return NULL;
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1319 }
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1320 return (PyObject *)result;
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1321 }
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1322
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1323 static PyObject *
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1324 set_intersection_multi(PySetObject *so, PyObject *args)
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1325 {
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1326 Py_ssize_t i;
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1327 PyObject *result = (PyObject *)so;
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1328
61466
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1329 if (PyTuple_GET_SIZE(args) == 0)
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1330 return set_copy(so);
47750
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1331
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1332 Py_INCREF(so);
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1333 for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) {
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1334 PyObject *other = PyTuple_GET_ITEM(args, i);
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1335 PyObject *newresult = set_intersection((PySetObject *)result, other);
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1336 if (newresult == NULL) {
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1337 Py_DECREF(result);
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1338 return NULL;
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1339 }
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1340 Py_DECREF(result);
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1341 result = newresult;
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1342 }
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1343 return result;
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1344 }
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1345
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1346 PyDoc_STRVAR(intersection_doc,
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1347 "Return the intersection of two sets as a new set.\n\
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1348 \n\
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1349 (i.e. all elements that are in both sets.)");
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1350
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1351 static PyObject *
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1352 set_intersection_update(PySetObject *so, PyObject *other)
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1353 {
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1354 PyObject *tmp;
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1355
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1356 tmp = set_intersection(so, other);
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1357 if (tmp == NULL)
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1358 return NULL;
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1359 set_swap_bodies(so, (PySetObject *)tmp);
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1360 Py_DECREF(tmp);
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1361 Py_RETURN_NONE;
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1362 }
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1363
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1364 static PyObject *
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1365 set_intersection_update_multi(PySetObject *so, PyObject *args)
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1366 {
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1367 PyObject *tmp;
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1368
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1369 tmp = set_intersection_multi(so, args);
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1370 if (tmp == NULL)
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1371 return NULL;
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1372 set_swap_bodies(so, (PySetObject *)tmp);
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1373 Py_DECREF(tmp);
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1374 Py_RETURN_NONE;
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1375 }
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1376
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1377 PyDoc_STRVAR(intersection_update_doc,
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1378 "Update a set with the intersection of itself and another.");
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1379
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1380 static PyObject *
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1381 set_and(PySetObject *so, PyObject *other)
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1382 {
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1383 if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) {
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1384 Py_INCREF(Py_NotImplemented);
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1385 return Py_NotImplemented;
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1386 }
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1387 return set_intersection(so, other);
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1388 }
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1389
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1390 static PyObject *
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1391 set_iand(PySetObject *so, PyObject *other)
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1392 {
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1393 PyObject *result;
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1394
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1395 if (!PyAnySet_Check(other)) {
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1396 Py_INCREF(Py_NotImplemented);
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1397 return Py_NotImplemented;
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1398 }
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1399 result = set_intersection_update(so, other);
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1400 if (result == NULL)
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1401 return NULL;
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1402 Py_DECREF(result);
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1403 Py_INCREF(so);
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1404 return (PyObject *)so;
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1405 }
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1406
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1407 static PyObject *
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1408 set_isdisjoint(PySetObject *so, PyObject *other)
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1409 {
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1410 PyObject *key, *it, *tmp;
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1411
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1412 if ((PyObject *)so == other) {
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1413 if (PySet_GET_SIZE(so) == 0)
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1414 Py_RETURN_TRUE;
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1415 else
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1416 Py_RETURN_FALSE;
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1417 }
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1418
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1419 if (PyAnySet_CheckExact(other)) {
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1420 Py_ssize_t pos = 0;
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1421 setentry *entry;
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1422
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1423 if (PySet_GET_SIZE(other) > PySet_GET_SIZE(so)) {
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1424 tmp = (PyObject *)so;
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1425 so = (PySetObject *)other;
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1426 other = tmp;
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1427 }
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1428 while (set_next((PySetObject *)other, &pos, &entry)) {
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1429 int rv = set_contains_entry(so, entry);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1430 if (rv == -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1431 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1432 if (rv)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1433 Py_RETURN_FALSE;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1434 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1435 Py_RETURN_TRUE;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1436 }
43815
85cf334b32c3 Merged revisions 58886-58929 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 43420
diff changeset
1437
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1438 it = PyObject_GetIter(other);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1439 if (it == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1440 return NULL;
43815
85cf334b32c3 Merged revisions 58886-58929 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 43420
diff changeset
1441
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1442 while ((key = PyIter_Next(it)) != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1443 int rv;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1444 setentry entry;
65494
e8969fb822fc make hashes always the size of pointers; introduce Py_hash_t #9778
Benjamin Peterson <benjamin@python.org>
parents: 64390
diff changeset
1445 Py_hash_t hash = PyObject_Hash(key);
43815
85cf334b32c3 Merged revisions 58886-58929 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 43420
diff changeset
1446
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1447 if (hash == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1448 Py_DECREF(key);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1449 Py_DECREF(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1450 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1451 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1452 entry.hash = hash;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1453 entry.key = key;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1454 rv = set_contains_entry(so, &entry);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1455 Py_DECREF(key);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1456 if (rv == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1457 Py_DECREF(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1458 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1459 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1460 if (rv) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1461 Py_DECREF(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1462 Py_RETURN_FALSE;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1463 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1464 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1465 Py_DECREF(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1466 if (PyErr_Occurred())
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1467 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1468 Py_RETURN_TRUE;
43815
85cf334b32c3 Merged revisions 58886-58929 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 43420
diff changeset
1469 }
85cf334b32c3 Merged revisions 58886-58929 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 43420
diff changeset
1470
85cf334b32c3 Merged revisions 58886-58929 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 43420
diff changeset
1471 PyDoc_STRVAR(isdisjoint_doc,
85cf334b32c3 Merged revisions 58886-58929 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 43420
diff changeset
1472 "Return True if two sets have a null intersection.");
85cf334b32c3 Merged revisions 58886-58929 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 43420
diff changeset
1473
35862
6867995a18a7 Prevent name pollution by making lots of internal functions static.
Neal Norwitz <nnorwitz@gmail.com>
parents: 35636
diff changeset
1474 static int
35328
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
Raymond Hettinger <python@rcn.com>
parents: 35321
diff changeset
1475 set_difference_update_internal(PySetObject *so, PyObject *other)
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
Raymond Hettinger <python@rcn.com>
parents: 35321
diff changeset
1476 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1477 if ((PyObject *)so == other)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1478 return set_clear_internal(so);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1479
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1480 if (PyAnySet_Check(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1481 setentry *entry;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1482 Py_ssize_t pos = 0;
35328
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
Raymond Hettinger <python@rcn.com>
parents: 35321
diff changeset
1483
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1484 while (set_next((PySetObject *)other, &pos, &entry))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1485 if (set_discard_entry(so, entry) == -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1486 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1487 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1488 PyObject *key, *it;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1489 it = PyObject_GetIter(other);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1490 if (it == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1491 return -1;
35328
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
Raymond Hettinger <python@rcn.com>
parents: 35321
diff changeset
1492
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1493 while ((key = PyIter_Next(it)) != NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1494 if (set_discard_key(so, key) == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1495 Py_DECREF(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1496 Py_DECREF(key);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1497 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1498 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1499 Py_DECREF(key);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1500 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1501 Py_DECREF(it);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1502 if (PyErr_Occurred())
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1503 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1504 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1505 /* If more than 1/5 are dummies, then resize them away. */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1506 if ((so->fill - so->used) * 5 < so->mask)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1507 return 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1508 return set_table_resize(so, so->used>50000 ? so->used*2 : so->used*4);
35328
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
Raymond Hettinger <python@rcn.com>
parents: 35321
diff changeset
1509 }
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
Raymond Hettinger <python@rcn.com>
parents: 35321
diff changeset
1510
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1511 static PyObject *
47750
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1512 set_difference_update(PySetObject *so, PyObject *args)
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1513 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1514 Py_ssize_t i;
47750
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1515
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1516 for (i=0 ; i<PyTuple_GET_SIZE(args) ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1517 PyObject *other = PyTuple_GET_ITEM(args, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1518 if (set_difference_update_internal(so, other) == -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1519 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1520 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1521 Py_RETURN_NONE;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1522 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1523
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1524 PyDoc_STRVAR(difference_update_doc,
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1525 "Remove all elements of another set from this set.");
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1526
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1527 static PyObject *
31191
e4682af7aea9 Improve algorithm for set.difference when the input is not a set.
Raymond Hettinger <python@rcn.com>
parents: 31178
diff changeset
1528 set_difference(PySetObject *so, PyObject *other)
e4682af7aea9 Improve algorithm for set.difference when the input is not a set.
Raymond Hettinger <python@rcn.com>
parents: 31178
diff changeset
1529 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1530 PyObject *result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1531 setentry *entry;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1532 Py_ssize_t pos = 0;
31191
e4682af7aea9 Improve algorithm for set.difference when the input is not a set.
Raymond Hettinger <python@rcn.com>
parents: 31178
diff changeset
1533
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1534 if (!PyAnySet_Check(other) && !PyDict_CheckExact(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1535 result = set_copy(so);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1536 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1537 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1538 if (set_difference_update_internal((PySetObject *)result, other) != -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1539 return result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1540 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1541 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1542 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1543
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1544 result = make_new_set_basetype(Py_TYPE(so), NULL);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1545 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1546 return NULL;
31191
e4682af7aea9 Improve algorithm for set.difference when the input is not a set.
Raymond Hettinger <python@rcn.com>
parents: 31178
diff changeset
1547
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1548 if (PyDict_CheckExact(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1549 while (set_next(so, &pos, &entry)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1550 setentry entrycopy;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1551 entrycopy.hash = entry->hash;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1552 entrycopy.key = entry->key;
65608
e996c61e47c7 Follow up to #9778: fix regressions on 64-bit Windows builds
Antoine Pitrou <solipsis@pitrou.net>
parents: 65512
diff changeset
1553 if (!_PyDict_Contains(other, entry->key, entry->hash)) {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1554 if (set_add_entry((PySetObject *)result, &entrycopy) == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1555 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1556 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1557 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1558 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1559 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1560 return result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1561 }
35292
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
parents: 35110
diff changeset
1562
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1563 while (set_next(so, &pos, &entry)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1564 int rv = set_contains_entry((PySetObject *)other, entry);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1565 if (rv == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1566 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1567 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1568 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1569 if (!rv) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1570 if (set_add_entry((PySetObject *)result, entry) == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1571 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1572 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1573 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1574 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1575 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1576 return result;
31191
e4682af7aea9 Improve algorithm for set.difference when the input is not a set.
Raymond Hettinger <python@rcn.com>
parents: 31178
diff changeset
1577 }
e4682af7aea9 Improve algorithm for set.difference when the input is not a set.
Raymond Hettinger <python@rcn.com>
parents: 31178
diff changeset
1578
47750
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1579 static PyObject *
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1580 set_difference_multi(PySetObject *so, PyObject *args)
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1581 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1582 Py_ssize_t i;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1583 PyObject *result, *other;
47750
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1584
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1585 if (PyTuple_GET_SIZE(args) == 0)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1586 return set_copy(so);
47750
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1587
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1588 other = PyTuple_GET_ITEM(args, 0);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1589 result = set_difference(so, other);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1590 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1591 return NULL;
47750
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1592
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1593 for (i=1 ; i<PyTuple_GET_SIZE(args) ; i++) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1594 other = PyTuple_GET_ITEM(args, i);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1595 if (set_difference_update_internal((PySetObject *)result, other) == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1596 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1597 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1598 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1599 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1600 return result;
47750
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1601 }
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1602
31191
e4682af7aea9 Improve algorithm for set.difference when the input is not a set.
Raymond Hettinger <python@rcn.com>
parents: 31178
diff changeset
1603 PyDoc_STRVAR(difference_doc,
47750
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1604 "Return the difference of two or more sets as a new set.\n\
31191
e4682af7aea9 Improve algorithm for set.difference when the input is not a set.
Raymond Hettinger <python@rcn.com>
parents: 31178
diff changeset
1605 \n\
47750
f64996760984 Merged revisions 64089,64098,64100-64102,64113,64115-64116,64118,64120,64132,64342 via svnmerge from
Amaury Forgeot d'Arc <amauryfa@gmail.com>
parents: 47620
diff changeset
1606 (i.e. all elements that are in this set but not the others.)");
31191
e4682af7aea9 Improve algorithm for set.difference when the input is not a set.
Raymond Hettinger <python@rcn.com>
parents: 31178
diff changeset
1607 static PyObject *
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1608 set_sub(PySetObject *so, PyObject *other)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1609 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1610 if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1611 Py_INCREF(Py_NotImplemented);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1612 return Py_NotImplemented;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1613 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1614 return set_difference(so, other);
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1615 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1616
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1617 static PyObject *
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1618 set_isub(PySetObject *so, PyObject *other)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1619 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1620 if (!PyAnySet_Check(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1621 Py_INCREF(Py_NotImplemented);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1622 return Py_NotImplemented;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1623 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1624 if (set_difference_update_internal(so, other) == -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1625 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1626 Py_INCREF(so);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1627 return (PyObject *)so;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1628 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1629
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1630 static PyObject *
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1631 set_symmetric_difference_update(PySetObject *so, PyObject *other)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1632 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1633 PySetObject *otherset;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1634 PyObject *key;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1635 Py_ssize_t pos = 0;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1636 setentry *entry;
35328
0ef64a93f3f2 * Add short-circuit code for in-place operations with self (such as
Raymond Hettinger <python@rcn.com>
parents: 35321
diff changeset
1637
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1638 if ((PyObject *)so == other)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1639 return set_clear(so);
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1640
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1641 if (PyDict_CheckExact(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1642 PyObject *value;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1643 int rv;
65494
e8969fb822fc make hashes always the size of pointers; introduce Py_hash_t #9778
Benjamin Peterson <benjamin@python.org>
parents: 64390
diff changeset
1644 Py_hash_t hash;
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1645 while (_PyDict_Next(other, &pos, &key, &value, &hash)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1646 setentry an_entry;
40450
cc992d75d5b3 Four months of trunk changes (including a few releases...)
Thomas Wouters <thomas@python.org>
parents: 40401
diff changeset
1647
64389
d56b3cafb1e6 Issue 8420: Fix obscure set crashers.
Raymond Hettinger <python@rcn.com>
parents: 64376
diff changeset
1648 Py_INCREF(key);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1649 an_entry.hash = hash;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1650 an_entry.key = key;
64389
d56b3cafb1e6 Issue 8420: Fix obscure set crashers.
Raymond Hettinger <python@rcn.com>
parents: 64376
diff changeset
1651
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1652 rv = set_discard_entry(so, &an_entry);
64390
b65d0371a731 Reindent.
Georg Brandl <georg@python.org>
parents: 64389
diff changeset
1653 if (rv == -1) {
64389
d56b3cafb1e6 Issue 8420: Fix obscure set crashers.
Raymond Hettinger <python@rcn.com>
parents: 64376
diff changeset
1654 Py_DECREF(key);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1655 return NULL;
64389
d56b3cafb1e6 Issue 8420: Fix obscure set crashers.
Raymond Hettinger <python@rcn.com>
parents: 64376
diff changeset
1656 }
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1657 if (rv == DISCARD_NOTFOUND) {
64389
d56b3cafb1e6 Issue 8420: Fix obscure set crashers.
Raymond Hettinger <python@rcn.com>
parents: 64376
diff changeset
1658 if (set_add_entry(so, &an_entry) == -1) {
d56b3cafb1e6 Issue 8420: Fix obscure set crashers.
Raymond Hettinger <python@rcn.com>
parents: 64376
diff changeset
1659 Py_DECREF(key);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1660 return NULL;
64389
d56b3cafb1e6 Issue 8420: Fix obscure set crashers.
Raymond Hettinger <python@rcn.com>
parents: 64376
diff changeset
1661 }
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1662 }
64390
b65d0371a731 Reindent.
Georg Brandl <georg@python.org>
parents: 64389
diff changeset
1663 Py_DECREF(key);
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1664 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1665 Py_RETURN_NONE;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1666 }
35292
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
parents: 35110
diff changeset
1667
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1668 if (PyAnySet_Check(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1669 Py_INCREF(other);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1670 otherset = (PySetObject *)other;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1671 } else {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1672 otherset = (PySetObject *)make_new_set_basetype(Py_TYPE(so), other);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1673 if (otherset == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1674 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1675 }
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1676
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1677 while (set_next(otherset, &pos, &entry)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1678 int rv = set_discard_entry(so, entry);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1679 if (rv == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1680 Py_DECREF(otherset);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1681 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1682 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1683 if (rv == DISCARD_NOTFOUND) {
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1684 if (set_add_entry(so, entry) == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1685 Py_DECREF(otherset);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1686 return NULL;
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1687 }
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parents: 60712
diff changeset
1688 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1689 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1690 Py_DECREF(otherset);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1691 Py_RETURN_NONE;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1692 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1693
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1694 PyDoc_STRVAR(symmetric_difference_update_doc,
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1695 "Update a set with the symmetric difference of itself and another.");
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1696
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1697 static PyObject *
31008
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1698 set_symmetric_difference(PySetObject *so, PyObject *other)
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1699 {
61466
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parents: 60712
diff changeset
1700 PyObject *rv;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1701 PySetObject *otherset;
31008
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1702
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1703 otherset = (PySetObject *)make_new_set_basetype(Py_TYPE(so), other);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1704 if (otherset == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1705 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1706 rv = set_symmetric_difference_update(otherset, (PyObject *)so);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1707 if (rv == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1708 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1709 Py_DECREF(rv);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1710 return (PyObject *)otherset;
31008
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1711 }
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1712
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1713 PyDoc_STRVAR(symmetric_difference_doc,
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1714 "Return the symmetric difference of two sets as a new set.\n\
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1715 \n\
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1716 (i.e. all elements that are in exactly one of the sets.)");
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1717
4224d807911c * Checkin remaining documentation
Raymond Hettinger <python@rcn.com>
parents: 31004
diff changeset
1718 static PyObject *
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1719 set_xor(PySetObject *so, PyObject *other)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1720 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1721 if (!PyAnySet_Check(so) || !PyAnySet_Check(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1722 Py_INCREF(Py_NotImplemented);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1723 return Py_NotImplemented;
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parents: 60712
diff changeset
1724 }
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parents: 60712
diff changeset
1725 return set_symmetric_difference(so, other);
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1726 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1727
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1728 static PyObject *
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1729 set_ixor(PySetObject *so, PyObject *other)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1730 {
61466
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1731 PyObject *result;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1732
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1733 if (!PyAnySet_Check(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1734 Py_INCREF(Py_NotImplemented);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1735 return Py_NotImplemented;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1736 }
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parents: 60712
diff changeset
1737 result = set_symmetric_difference_update(so, other);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1738 if (result == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1739 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1740 Py_DECREF(result);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1741 Py_INCREF(so);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1742 return (PyObject *)so;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1743 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1744
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1745 static PyObject *
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1746 set_issubset(PySetObject *so, PyObject *other)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1747 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1748 setentry *entry;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1749 Py_ssize_t pos = 0;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1750
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1751 if (!PyAnySet_Check(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1752 PyObject *tmp, *result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1753 tmp = make_new_set(&PySet_Type, other);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1754 if (tmp == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1755 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1756 result = set_issubset(so, tmp);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1757 Py_DECREF(tmp);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1758 return result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1759 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1760 if (PySet_GET_SIZE(so) > PySet_GET_SIZE(other))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1761 Py_RETURN_FALSE;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1762
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1763 while (set_next(so, &pos, &entry)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1764 int rv = set_contains_entry((PySetObject *)other, entry);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1765 if (rv == -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1766 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1767 if (!rv)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1768 Py_RETURN_FALSE;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1769 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1770 Py_RETURN_TRUE;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1771 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1772
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1773 PyDoc_STRVAR(issubset_doc, "Report whether another set contains this set.");
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1774
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1775 static PyObject *
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1776 set_issuperset(PySetObject *so, PyObject *other)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1777 {
61466
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parents: 60712
diff changeset
1778 PyObject *tmp, *result;
30994
632b223cb8e8 issubset() and issuperset() to work with general iterables
Raymond Hettinger <python@rcn.com>
parents: 30993
diff changeset
1779
61466
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parents: 60712
diff changeset
1780 if (!PyAnySet_Check(other)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1781 tmp = make_new_set(&PySet_Type, other);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1782 if (tmp == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1783 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1784 result = set_issuperset(so, tmp);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1785 Py_DECREF(tmp);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1786 return result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1787 }
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parents: 60712
diff changeset
1788 return set_issubset((PySetObject *)other, (PyObject *)so);
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1789 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1790
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1791 PyDoc_STRVAR(issuperset_doc, "Report whether this set contains another set.");
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1792
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1793 static PyObject *
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1794 set_richcompare(PySetObject *v, PyObject *w, int op)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1795 {
61466
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diff changeset
1796 PyObject *r1, *r2;
35292
35a698302c63 Revised the set() and frozenset() implementaion to use its own internal
Raymond Hettinger <python@rcn.com>
parents: 35110
diff changeset
1797
61466
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diff changeset
1798 if(!PyAnySet_Check(w)) {
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diff changeset
1799 Py_INCREF(Py_NotImplemented);
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diff changeset
1800 return Py_NotImplemented;
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parents: 60712
diff changeset
1801 }
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parents: 60712
diff changeset
1802 switch (op) {
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parents: 60712
diff changeset
1803 case Py_EQ:
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diff changeset
1804 if (PySet_GET_SIZE(v) != PySet_GET_SIZE(w))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1805 Py_RETURN_FALSE;
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parents: 60712
diff changeset
1806 if (v->hash != -1 &&
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1807 ((PySetObject *)w)->hash != -1 &&
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
1808 v->hash != ((PySetObject *)w)->hash)
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parents: 60712
diff changeset
1809 Py_RETURN_FALSE;
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parents: 60712
diff changeset
1810 return set_issubset(v, w);
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parents: 60712
diff changeset
1811 case Py_NE:
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parents: 60712
diff changeset
1812 r1 = set_richcompare(v, w, Py_EQ);
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parents: 60712
diff changeset
1813 if (r1 == NULL)
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parents: 60712
diff changeset
1814 return NULL;
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diff changeset
1815 r2 = PyBool_FromLong(PyObject_Not(r1));
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parents: 60712
diff changeset
1816 Py_DECREF(r1);
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parents: 60712
diff changeset
1817 return r2;
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parents: 60712
diff changeset
1818 case Py_LE:
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diff changeset
1819 return set_issubset(v, w);
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diff changeset
1820 case Py_GE:
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parents: 60712
diff changeset
1821 return set_issuperset(v, w);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1822 case Py_LT:
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1823 if (PySet_GET_SIZE(v) >= PySet_GET_SIZE(w))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1824 Py_RETURN_FALSE;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1825 return set_issubset(v, w);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1826 case Py_GT:
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1827 if (PySet_GET_SIZE(v) <= PySet_GET_SIZE(w))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1828 Py_RETURN_FALSE;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1829 return set_issuperset(v, w);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1830 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1831 Py_INCREF(Py_NotImplemented);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1832 return Py_NotImplemented;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1833 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1834
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1835 static PyObject *
35295
f30ebdc3bddf Improve variable names.
Raymond Hettinger <python@rcn.com>
parents: 35294
diff changeset
1836 set_add(PySetObject *so, PyObject *key)
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1837 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1838 if (set_add_key(so, key) == -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1839 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1840 Py_RETURN_NONE;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1841 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1842
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1843 PyDoc_STRVAR(add_doc,
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1844 "Add an element to a set.\n\
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1845 \n\
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1846 This has no effect if the element is already present.");
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1847
35341
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1848 static int
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1849 set_contains(PySetObject *so, PyObject *key)
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1850 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1851 PyObject *tmpkey;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1852 int rv;
35341
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1853
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1854 rv = set_contains_key(so, key);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1855 if (rv == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1856 if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1857 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1858 PyErr_Clear();
63768
76f8402ca7f3 Issue8757: Implicit set-to-frozenset conversion not thread-safe.
Raymond Hettinger <python@rcn.com>
parents: 61466
diff changeset
1859 tmpkey = make_new_set(&PyFrozenSet_Type, key);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1860 if (tmpkey == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1861 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1862 rv = set_contains(so, tmpkey);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1863 Py_DECREF(tmpkey);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1864 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1865 return rv;
35341
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1866 }
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1867
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1868 static PyObject *
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1869 set_direct_contains(PySetObject *so, PyObject *key)
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1870 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1871 long result;
35341
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1872
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1873 result = set_contains(so, key);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1874 if (result == -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1875 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1876 return PyBool_FromLong(result);
35341
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1877 }
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1878
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1879 PyDoc_STRVAR(contains_doc, "x.__contains__(y) <==> y in x.");
f6b462d2a3a3 More function re-ordering (placing like functions together).
Raymond Hettinger <python@rcn.com>
parents: 35339
diff changeset
1880
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1881 static PyObject *
35295
f30ebdc3bddf Improve variable names.
Raymond Hettinger <python@rcn.com>
parents: 35294
diff changeset
1882 set_remove(PySetObject *so, PyObject *key)
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1883 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1884 PyObject *tmpkey;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1885 int rv;
31002
622a76bc0237 Extend temporary hashability to remove() and discard().
Raymond Hettinger <python@rcn.com>
parents: 30995
diff changeset
1886
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1887 rv = set_discard_key(so, key);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1888 if (rv == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1889 if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1890 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1891 PyErr_Clear();
63768
76f8402ca7f3 Issue8757: Implicit set-to-frozenset conversion not thread-safe.
Raymond Hettinger <python@rcn.com>
parents: 61466
diff changeset
1892 tmpkey = make_new_set(&PyFrozenSet_Type, key);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1893 if (tmpkey == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1894 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1895 rv = set_discard_key(so, tmpkey);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1896 Py_DECREF(tmpkey);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1897 if (rv == -1)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1898 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1899 }
49493
bdf4da5d04ad merge from trunk
Benjamin Peterson <benjamin@python.org>
parents: 48660
diff changeset
1900
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1901 if (rv == DISCARD_NOTFOUND) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1902 set_key_error(key);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1903 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1904 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1905 Py_RETURN_NONE;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1906 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1907
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1908 PyDoc_STRVAR(remove_doc,
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1909 "Remove an element from a set; it must be a member.\n\
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1910 \n\
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1911 If the element is not a member, raise a KeyError.");
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1912
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1913 static PyObject *
35295
f30ebdc3bddf Improve variable names.
Raymond Hettinger <python@rcn.com>
parents: 35294
diff changeset
1914 set_discard(PySetObject *so, PyObject *key)
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1915 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1916 PyObject *tmpkey, *result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1917 int rv;
31177
eeaa3660671c Refactor set.discard() and set.remove().
Raymond Hettinger <python@rcn.com>
parents: 31175
diff changeset
1918
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1919 rv = set_discard_key(so, key);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1920 if (rv == -1) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1921 if (!PySet_Check(key) || !PyErr_ExceptionMatches(PyExc_TypeError))
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1922 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1923 PyErr_Clear();
63768
76f8402ca7f3 Issue8757: Implicit set-to-frozenset conversion not thread-safe.
Raymond Hettinger <python@rcn.com>
parents: 61466
diff changeset
1924 tmpkey = make_new_set(&PyFrozenSet_Type, key);
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1925 if (tmpkey == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1926 return NULL;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1927 result = set_discard(so, tmpkey);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1928 Py_DECREF(tmpkey);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1929 return result;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1930 }
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1931 Py_RETURN_NONE;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1932 }
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1933
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1934 PyDoc_STRVAR(discard_doc,
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1935 "Remove an element from a set if it is a member.\n\
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1936 \n\
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1937 If the element is not a member, do nothing.");
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1938
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1939 static PyObject *
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1940 set_reduce(PySetObject *so)
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1941 {
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1942 PyObject *keys=NULL, *args=NULL, *result=NULL, *dict=NULL;
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
1943
61466
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1944 keys = PySequence_List((PyObject *)so);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1945 if (keys == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1946 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1947 args = PyTuple_Pack(1, keys);
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1948 if (args == NULL)
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1949 goto done;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1950 dict = PyObject_GetAttrString((PyObject *)so, "__dict__");
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1951 if (dict == NULL) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1952 PyErr_Clear();
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1953 dict = Py_None;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
1954 Py_INCREF(dict);
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1955 }
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1956 result = PyTuple_Pack(3, Py_TYPE(so), args, dict);
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1957 done:
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1958 Py_XDECREF(args);
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1959 Py_XDECREF(keys);
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1960 Py_XDECREF(dict);
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1961 return result;
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1962 }
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1963
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1964 PyDoc_STRVAR(reduce_doc, "Return state information for pickling.");
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1965
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1966 static PyObject *
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1967 set_sizeof(PySetObject *so)
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1968 {
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1969 Py_ssize_t res;
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1970
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1971 res = sizeof(PySetObject);
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1972 if (so->table != so->smalltable)
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1973 res = res + (so->mask + 1) * sizeof(setentry);
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1974 return PyLong_FromSsize_t(res);
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1975 }
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1976
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1977 PyDoc_STRVAR(sizeof_doc, "S.__sizeof__() -> size of S in memory, in bytes");
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1978 static int
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1979 set_init(PySetObject *self, PyObject *args, PyObject *kwds)
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1980 {
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1981 PyObject *iterable = NULL;
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1982
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1983 if (!PyAnySet_Check(self))
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1984 return -1;
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1985 if (PySet_Check(self) && !_PyArg_NoKeywords("set()", kwds))
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1986 return -1;
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1987 if (!PyArg_UnpackTuple(args, Py_TYPE(self)->tp_name, 0, 1, &iterable))
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1988 return -1;
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1989 set_clear_internal(self);
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1990 self->hash = -1;
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1991 if (iterable == NULL)
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1992 return 0;
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1993 return set_update_internal(self, iterable);
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1994 }
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1995
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1996 static PySequenceMethods set_as_sequence = {
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diff changeset
1997 set_len, /* sq_length */
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1998 0, /* sq_concat */
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1999 0, /* sq_repeat */
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2000 0, /* sq_item */
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2001 0, /* sq_slice */
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2002 0, /* sq_ass_item */
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2003 0, /* sq_ass_slice */
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2004 (objobjproc)set_contains, /* sq_contains */
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2005 };
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2006
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diff changeset
2007 /* set object ********************************************************/
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2008
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2009 #ifdef Py_DEBUG
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diff changeset
2010 static PyObject *test_c_api(PySetObject *so);
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2011
2f1bf64b837e Numerous fix-ups to C API and docs. Added tests for C API.
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diff changeset
2012 PyDoc_STRVAR(test_c_api_doc, "Exercises C API. Returns True.\n\
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diff changeset
2013 All is well if assertions don't fail.");
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diff changeset
2014 #endif
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2015
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2016 static PyMethodDef set_methods[] = {
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2017 {"add", (PyCFunction)set_add, METH_O,
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2018 add_doc},
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2019 {"clear", (PyCFunction)set_clear, METH_NOARGS,
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2020 clear_doc},
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2021 {"__contains__",(PyCFunction)set_direct_contains, METH_O | METH_COEXIST,
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2022 contains_doc},
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2023 {"copy", (PyCFunction)set_copy, METH_NOARGS,
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2024 copy_doc},
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2025 {"discard", (PyCFunction)set_discard, METH_O,
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diff changeset
2026 discard_doc},
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2027 {"difference", (PyCFunction)set_difference_multi, METH_VARARGS,
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diff changeset
2028 difference_doc},
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2029 {"difference_update", (PyCFunction)set_difference_update, METH_VARARGS,
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diff changeset
2030 difference_update_doc},
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2031 {"intersection",(PyCFunction)set_intersection_multi, METH_VARARGS,
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diff changeset
2032 intersection_doc},
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diff changeset
2033 {"intersection_update",(PyCFunction)set_intersection_update_multi, METH_VARARGS,
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diff changeset
2034 intersection_update_doc},
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2035 {"isdisjoint", (PyCFunction)set_isdisjoint, METH_O,
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diff changeset
2036 isdisjoint_doc},
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diff changeset
2037 {"issubset", (PyCFunction)set_issubset, METH_O,
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2038 issubset_doc},
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2039 {"issuperset", (PyCFunction)set_issuperset, METH_O,
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2040 issuperset_doc},
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diff changeset
2041 {"pop", (PyCFunction)set_pop, METH_NOARGS,
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diff changeset
2042 pop_doc},
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2043 {"__reduce__", (PyCFunction)set_reduce, METH_NOARGS,
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2044 reduce_doc},
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2045 {"remove", (PyCFunction)set_remove, METH_O,
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diff changeset
2046 remove_doc},
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2047 {"__sizeof__", (PyCFunction)set_sizeof, METH_NOARGS,
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diff changeset
2048 sizeof_doc},
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2049 {"symmetric_difference",(PyCFunction)set_symmetric_difference, METH_O,
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2050 symmetric_difference_doc},
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2051 {"symmetric_difference_update",(PyCFunction)set_symmetric_difference_update, METH_O,
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2052 symmetric_difference_update_doc},
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2053 #ifdef Py_DEBUG
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2054 {"test_c_api", (PyCFunction)test_c_api, METH_NOARGS,
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2055 test_c_api_doc},
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2056 #endif
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2057 {"union", (PyCFunction)set_union, METH_VARARGS,
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2058 union_doc},
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2059 {"update", (PyCFunction)set_update, METH_VARARGS,
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2060 update_doc},
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2061 {NULL, NULL} /* sentinel */
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2062 };
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2063
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2064 static PyNumberMethods set_as_number = {
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2065 0, /*nb_add*/
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2066 (binaryfunc)set_sub, /*nb_subtract*/
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2067 0, /*nb_multiply*/
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2068 0, /*nb_remainder*/
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2069 0, /*nb_divmod*/
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2070 0, /*nb_power*/
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2071 0, /*nb_negative*/
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2072 0, /*nb_positive*/
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2073 0, /*nb_absolute*/
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2074 0, /*nb_bool*/
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2075 0, /*nb_invert*/
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2076 0, /*nb_lshift*/
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2077 0, /*nb_rshift*/
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2078 (binaryfunc)set_and, /*nb_and*/
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2079 (binaryfunc)set_xor, /*nb_xor*/
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2080 (binaryfunc)set_or, /*nb_or*/
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2081 0, /*nb_int*/
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2082 0, /*nb_reserved*/
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2083 0, /*nb_float*/
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2084 0, /*nb_inplace_add*/
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2085 (binaryfunc)set_isub, /*nb_inplace_subtract*/
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2086 0, /*nb_inplace_multiply*/
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2087 0, /*nb_inplace_remainder*/
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2088 0, /*nb_inplace_power*/
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2089 0, /*nb_inplace_lshift*/
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2090 0, /*nb_inplace_rshift*/
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2091 (binaryfunc)set_iand, /*nb_inplace_and*/
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2092 (binaryfunc)set_ixor, /*nb_inplace_xor*/
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2093 (binaryfunc)set_ior, /*nb_inplace_or*/
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2094 };
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2095
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2096 PyDoc_STRVAR(set_doc,
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2097 "set() -> new empty set object\n\
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2098 set(iterable) -> new set object\n\
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2099 \n\
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2100 Build an unordered collection of unique elements.");
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2101
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2102 PyTypeObject PySet_Type = {
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2103 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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2104 "set", /* tp_name */
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2105 sizeof(PySetObject), /* tp_basicsize */
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2106 0, /* tp_itemsize */
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2107 /* methods */
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2108 (destructor)set_dealloc, /* tp_dealloc */
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2109 0, /* tp_print */
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2110 0, /* tp_getattr */
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2111 0, /* tp_setattr */
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2112 0, /* tp_reserved */
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2113 (reprfunc)set_repr, /* tp_repr */
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diff changeset
2114 &set_as_number, /* tp_as_number */
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2115 &set_as_sequence, /* tp_as_sequence */
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2116 0, /* tp_as_mapping */
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2117 PyObject_HashNotImplemented, /* tp_hash */
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2118 0, /* tp_call */
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2119 0, /* tp_str */
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2120 PyObject_GenericGetAttr, /* tp_getattro */
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2121 0, /* tp_setattro */
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2122 0, /* tp_as_buffer */
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2123 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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2124 Py_TPFLAGS_BASETYPE, /* tp_flags */
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diff changeset
2125 set_doc, /* tp_doc */
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diff changeset
2126 (traverseproc)set_traverse, /* tp_traverse */
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2127 (inquiry)set_clear_internal, /* tp_clear */
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2128 (richcmpfunc)set_richcompare, /* tp_richcompare */
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2129 offsetof(PySetObject, weakreflist), /* tp_weaklistoffset */
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2130 (getiterfunc)set_iter, /* tp_iter */
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2131 0, /* tp_iternext */
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diff changeset
2132 set_methods, /* tp_methods */
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diff changeset
2133 0, /* tp_members */
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2134 0, /* tp_getset */
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diff changeset
2135 0, /* tp_base */
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2136 0, /* tp_dict */
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2137 0, /* tp_descr_get */
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2138 0, /* tp_descr_set */
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2139 0, /* tp_dictoffset */
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2140 (initproc)set_init, /* tp_init */
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diff changeset
2141 PyType_GenericAlloc, /* tp_alloc */
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diff changeset
2142 set_new, /* tp_new */
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2143 PyObject_GC_Del, /* tp_free */
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2144 };
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2145
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2146 /* frozenset object ********************************************************/
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2147
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2148
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2149 static PyMethodDef frozenset_methods[] = {
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2150 {"__contains__",(PyCFunction)set_direct_contains, METH_O | METH_COEXIST,
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2151 contains_doc},
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2152 {"copy", (PyCFunction)frozenset_copy, METH_NOARGS,
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2153 copy_doc},
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2154 {"difference", (PyCFunction)set_difference_multi, METH_VARARGS,
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2155 difference_doc},
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2156 {"intersection",(PyCFunction)set_intersection_multi, METH_VARARGS,
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2157 intersection_doc},
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2158 {"isdisjoint", (PyCFunction)set_isdisjoint, METH_O,
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2159 isdisjoint_doc},
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2160 {"issubset", (PyCFunction)set_issubset, METH_O,
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2161 issubset_doc},
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2162 {"issuperset", (PyCFunction)set_issuperset, METH_O,
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2163 issuperset_doc},
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2164 {"__reduce__", (PyCFunction)set_reduce, METH_NOARGS,
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2165 reduce_doc},
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2166 {"__sizeof__", (PyCFunction)set_sizeof, METH_NOARGS,
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2167 sizeof_doc},
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2168 {"symmetric_difference",(PyCFunction)set_symmetric_difference, METH_O,
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2169 symmetric_difference_doc},
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2170 {"union", (PyCFunction)set_union, METH_VARARGS,
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2171 union_doc},
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2172 {NULL, NULL} /* sentinel */
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2173 };
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2174
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2175 static PyNumberMethods frozenset_as_number = {
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2176 0, /*nb_add*/
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2177 (binaryfunc)set_sub, /*nb_subtract*/
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2178 0, /*nb_multiply*/
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2179 0, /*nb_remainder*/
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2180 0, /*nb_divmod*/
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2181 0, /*nb_power*/
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2182 0, /*nb_negative*/
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2183 0, /*nb_positive*/
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2184 0, /*nb_absolute*/
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2185 0, /*nb_bool*/
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2186 0, /*nb_invert*/
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2187 0, /*nb_lshift*/
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2188 0, /*nb_rshift*/
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2189 (binaryfunc)set_and, /*nb_and*/
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2190 (binaryfunc)set_xor, /*nb_xor*/
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2191 (binaryfunc)set_or, /*nb_or*/
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2192 };
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2193
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2194 PyDoc_STRVAR(frozenset_doc,
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2195 "frozenset() -> empty frozenset object\n\
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2196 frozenset(iterable) -> frozenset object\n\
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2197 \n\
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2198 Build an immutable unordered collection of unique elements.");
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2199
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2200 PyTypeObject PyFrozenSet_Type = {
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2201 PyVarObject_HEAD_INIT(&PyType_Type, 0)
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2202 "frozenset", /* tp_name */
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2203 sizeof(PySetObject), /* tp_basicsize */
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2204 0, /* tp_itemsize */
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2205 /* methods */
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2206 (destructor)set_dealloc, /* tp_dealloc */
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2207 0, /* tp_print */
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parents: 60712
diff changeset
2208 0, /* tp_getattr */
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parents: 60712
diff changeset
2209 0, /* tp_setattr */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2210 0, /* tp_reserved */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2211 (reprfunc)set_repr, /* tp_repr */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2212 &frozenset_as_number, /* tp_as_number */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2213 &set_as_sequence, /* tp_as_sequence */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2214 0, /* tp_as_mapping */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2215 frozenset_hash, /* tp_hash */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2216 0, /* tp_call */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2217 0, /* tp_str */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
2218 PyObject_GenericGetAttr, /* tp_getattro */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2219 0, /* tp_setattro */
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parents: 60712
diff changeset
2220 0, /* tp_as_buffer */
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parents: 60712
diff changeset
2221 Py_TPFLAGS_DEFAULT | Py_TPFLAGS_HAVE_GC |
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parents: 60712
diff changeset
2222 Py_TPFLAGS_BASETYPE, /* tp_flags */
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parents: 60712
diff changeset
2223 frozenset_doc, /* tp_doc */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2224 (traverseproc)set_traverse, /* tp_traverse */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2225 (inquiry)set_clear_internal, /* tp_clear */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2226 (richcmpfunc)set_richcompare, /* tp_richcompare */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2227 offsetof(PySetObject, weakreflist), /* tp_weaklistoffset */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2228 (getiterfunc)set_iter, /* tp_iter */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2229 0, /* tp_iternext */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2230 frozenset_methods, /* tp_methods */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2231 0, /* tp_members */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2232 0, /* tp_getset */
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parents: 60712
diff changeset
2233 0, /* tp_base */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2234 0, /* tp_dict */
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parents: 60712
diff changeset
2235 0, /* tp_descr_get */
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parents: 60712
diff changeset
2236 0, /* tp_descr_set */
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Antoine Pitrou <solipsis@pitrou.net>
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diff changeset
2237 0, /* tp_dictoffset */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2238 0, /* tp_init */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
2239 PyType_GenericAlloc, /* tp_alloc */
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2240 frozenset_new, /* tp_new */
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Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
diff changeset
2241 PyObject_GC_Del, /* tp_free */
30929
54ff68e973ee * Migrate set() and frozenset() from the sandbox.
Raymond Hettinger <python@rcn.com>
parents:
diff changeset
2242 };
35346
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
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diff changeset
2243
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2244
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2245 /***** C API functions *************************************************/
dd2357953fe3 Add a C API for sets and frozensets.
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diff changeset
2246
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
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diff changeset
2247 PyObject *
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2248 PySet_New(PyObject *iterable)
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2249 {
61466
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diff changeset
2250 return make_new_set(&PySet_Type, iterable);
35346
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Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2251 }
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
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diff changeset
2252
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2253 PyObject *
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
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diff changeset
2254 PyFrozenSet_New(PyObject *iterable)
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2255 {
61466
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diff changeset
2256 return make_new_set(&PyFrozenSet_Type, iterable);
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Raymond Hettinger <python@rcn.com>
parents: 35347
diff changeset
2257 }
2f1bf64b837e Numerous fix-ups to C API and docs. Added tests for C API.
Raymond Hettinger <python@rcn.com>
parents: 35347
diff changeset
2258
36833
9e81788b0d4b Use Py_ssize_t for PySet_Size() like all the other Py*_Size() functions.
Neal Norwitz <nnorwitz@gmail.com>
parents: 36501
diff changeset
2259 Py_ssize_t
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Raymond Hettinger <python@rcn.com>
parents: 35347
diff changeset
2260 PySet_Size(PyObject *anyset)
2f1bf64b837e Numerous fix-ups to C API and docs. Added tests for C API.
Raymond Hettinger <python@rcn.com>
parents: 35347
diff changeset
2261 {
61466
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diff changeset
2262 if (!PyAnySet_Check(anyset)) {
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diff changeset
2263 PyErr_BadInternalCall();
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diff changeset
2264 return -1;
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diff changeset
2265 }
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2266 return PySet_GET_SIZE(anyset);
35346
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diff changeset
2267 }
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
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2268
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
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2269 int
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2270 PySet_Clear(PyObject *set)
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diff changeset
2271 {
61466
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diff changeset
2272 if (!PySet_Check(set)) {
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diff changeset
2273 PyErr_BadInternalCall();
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diff changeset
2274 return -1;
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diff changeset
2275 }
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diff changeset
2276 return set_clear_internal((PySetObject *)set);
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parents: 37191
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2277 }
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Thomas Wouters <thomas@python.org>
parents: 37191
diff changeset
2278
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Thomas Wouters <thomas@python.org>
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2279 int
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Raymond Hettinger <python@rcn.com>
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diff changeset
2280 PySet_Contains(PyObject *anyset, PyObject *key)
dd2357953fe3 Add a C API for sets and frozensets.
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parents: 35341
diff changeset
2281 {
61466
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diff changeset
2282 if (!PyAnySet_Check(anyset)) {
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diff changeset
2283 PyErr_BadInternalCall();
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diff changeset
2284 return -1;
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parents: 60712
diff changeset
2285 }
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diff changeset
2286 return set_contains_key((PySetObject *)anyset, key);
35346
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Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2287 }
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
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diff changeset
2288
dd2357953fe3 Add a C API for sets and frozensets.
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diff changeset
2289 int
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Raymond Hettinger <python@rcn.com>
parents: 35347
diff changeset
2290 PySet_Discard(PyObject *set, PyObject *key)
35346
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diff changeset
2291 {
61466
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diff changeset
2292 if (!PySet_Check(set)) {
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diff changeset
2293 PyErr_BadInternalCall();
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parents: 60712
diff changeset
2294 return -1;
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parents: 60712
diff changeset
2295 }
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parents: 60712
diff changeset
2296 return set_discard_key((PySetObject *)set, key);
35346
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2297 }
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2298
dd2357953fe3 Add a C API for sets and frozensets.
Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2299 int
45044
c3b38a85989f Merged revisions 60383-60407 via svnmerge from
Christian Heimes <christian@cheimes.de>
parents: 44999
diff changeset
2300 PySet_Add(PyObject *anyset, PyObject *key)
35346
dd2357953fe3 Add a C API for sets and frozensets.
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diff changeset
2301 {
61466
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diff changeset
2302 if (!PySet_Check(anyset) &&
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
2303 (!PyFrozenSet_Check(anyset) || Py_REFCNT(anyset) != 1)) {
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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diff changeset
2304 PyErr_BadInternalCall();
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parents: 60712
diff changeset
2305 return -1;
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
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parents: 60712
diff changeset
2306 }
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parents: 60712
diff changeset
2307 return set_add_key((PySetObject *)anyset, key);
35346
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Raymond Hettinger <python@rcn.com>
parents: 35341
diff changeset
2308 }
dd2357953fe3 Add a C API for sets and frozensets.
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parents: 35341
diff changeset
2309
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parents: 37191
diff changeset
2310 int
65494
e8969fb822fc make hashes always the size of pointers; introduce Py_hash_t #9778
Benjamin Peterson <benjamin@python.org>
parents: 64390
diff changeset
2311 _PySet_NextEntry(PyObject *set, Py_ssize_t *pos, PyObject **key, Py_hash_t *hash)
41554
06145fbc7ab9 Merged revisions 53952-54987 via svnmerge from
Guido van Rossum <guido@python.org>
parents: 40893
diff changeset
2312 {
61466
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diff changeset
2313 setentry *entry;
41554
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diff changeset
2314
61466
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diff changeset
2315 if (!PyAnySet_Check(set)) {
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diff changeset
2316 PyErr_BadInternalCall();
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diff changeset
2317 return -1;
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diff changeset
2318 }
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diff changeset
2319 if (set_next((PySetObject *)set, pos, &entry) == 0)
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parents: 60712
diff changeset
2320 return 0;
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diff changeset
2321 *key = entry->key;
65494
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parents: 64390
diff changeset
2322 *hash = entry->hash;
61466
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diff changeset
2323 return 1;
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diff changeset
2324 }
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2325
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diff changeset
2326 PyObject *
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parents: 35341
diff changeset
2327 PySet_Pop(PyObject *set)
dd2357953fe3 Add a C API for sets and frozensets.
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diff changeset
2328 {
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diff changeset
2329 if (!PySet_Check(set)) {
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diff changeset
2330 PyErr_BadInternalCall();
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diff changeset
2331 return NULL;
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diff changeset
2332 }
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diff changeset
2333 return set_pop((PySetObject *)set);
35346
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parents: 35341
diff changeset
2334 }
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diff changeset
2335
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diff changeset
2336 int
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Thomas Wouters <thomas@python.org>
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2337 _PySet_Update(PyObject *set, PyObject *iterable)
f731859e9b3b Merge p3yk branch with the trunk up to revision 45595. This breaks a fair
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2338 {
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diff changeset
2339 if (!PySet_Check(set)) {
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2340 PyErr_BadInternalCall();
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2341 return -1;
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2342 }
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2343 return set_update_internal((PySetObject *)set, iterable);
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2344 }
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2345
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2346 #ifdef Py_DEBUG
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2347
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2348 /* Test code to be called with any three element set.
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2349 Returns True and original set is restored. */
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2350
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2351 #define assertRaises(call_return_value, exception) \
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2352 do { \
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2353 assert(call_return_value); \
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2354 assert(PyErr_ExceptionMatches(exception)); \
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2355 PyErr_Clear(); \
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2356 } while(0)
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2357
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2358 static PyObject *
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2359 test_c_api(PySetObject *so)
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2360 {
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2361 Py_ssize_t count;
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2362 char *s;
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2363 Py_ssize_t i;
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2364 PyObject *elem=NULL, *dup=NULL, *t, *f, *dup2, *x;
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2365 PyObject *ob = (PyObject *)so;
65494
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2366 Py_hash_t hash;
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2367 PyObject *str;
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2368
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2369 /* Verify preconditions */
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2370 assert(PyAnySet_Check(ob));
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2371 assert(PyAnySet_CheckExact(ob));
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2372 assert(!PyFrozenSet_CheckExact(ob));
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2373
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2374 /* so.clear(); so |= set("abc"); */
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2375 str = PyUnicode_FromString("abc");
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2376 if (str == NULL)
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2377 return NULL;
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2378 set_clear_internal(so);
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2379 if (set_update_internal(so, str) == -1) {
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2380 Py_DECREF(str);
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2381 return NULL;
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2382 }
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2383 Py_DECREF(str);
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2384
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2385 /* Exercise type/size checks */
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diff changeset
2386 assert(PySet_Size(ob) == 3);
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2387 assert(PySet_GET_SIZE(ob) == 3);
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2388
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2389 /* Raise TypeError for non-iterable constructor arguments */
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diff changeset
2390 assertRaises(PySet_New(Py_None) == NULL, PyExc_TypeError);
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diff changeset
2391 assertRaises(PyFrozenSet_New(Py_None) == NULL, PyExc_TypeError);
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2392
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2393 /* Raise TypeError for unhashable key */
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diff changeset
2394 dup = PySet_New(ob);
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2395 assertRaises(PySet_Discard(ob, dup) == -1, PyExc_TypeError);
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diff changeset
2396 assertRaises(PySet_Contains(ob, dup) == -1, PyExc_TypeError);
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diff changeset
2397 assertRaises(PySet_Add(ob, dup) == -1, PyExc_TypeError);
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2398
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diff changeset
2399 /* Exercise successful pop, contains, add, and discard */
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diff changeset
2400 elem = PySet_Pop(ob);
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diff changeset
2401 assert(PySet_Contains(ob, elem) == 0);
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2402 assert(PySet_GET_SIZE(ob) == 2);
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2403 assert(PySet_Add(ob, elem) == 0);
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2404 assert(PySet_Contains(ob, elem) == 1);
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2405 assert(PySet_GET_SIZE(ob) == 3);
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2406 assert(PySet_Discard(ob, elem) == 1);
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diff changeset
2407 assert(PySet_GET_SIZE(ob) == 2);
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2408 assert(PySet_Discard(ob, elem) == 0);
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diff changeset
2409 assert(PySet_GET_SIZE(ob) == 2);
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2410
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2411 /* Exercise clear */
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2412 dup2 = PySet_New(dup);
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2413 assert(PySet_Clear(dup2) == 0);
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2414 assert(PySet_Size(dup2) == 0);
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2415 Py_DECREF(dup2);
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2416
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2417 /* Raise SystemError on clear or update of frozen set */
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diff changeset
2418 f = PyFrozenSet_New(dup);
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diff changeset
2419 assertRaises(PySet_Clear(f) == -1, PyExc_SystemError);
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diff changeset
2420 assertRaises(_PySet_Update(f, dup) == -1, PyExc_SystemError);
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diff changeset
2421 assert(PySet_Add(f, elem) == 0);
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2422 Py_INCREF(f);
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diff changeset
2423 assertRaises(PySet_Add(f, elem) == -1, PyExc_SystemError);
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diff changeset
2424 Py_DECREF(f);
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diff changeset
2425 Py_DECREF(f);
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2426
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2427 /* Exercise direct iteration */
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diff changeset
2428 i = 0, count = 0;
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2429 while (_PySet_NextEntry((PyObject *)dup, &i, &x, &hash)) {
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diff changeset
2430 s = _PyUnicode_AsString(x);
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diff changeset
2431 assert(s && (s[0] == 'a' || s[0] == 'b' || s[0] == 'c'));
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2432 count++;
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2433 }
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2434 assert(count == 3);
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2435
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2436 /* Exercise updates */
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diff changeset
2437 dup2 = PySet_New(NULL);
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2438 assert(_PySet_Update(dup2, dup) == 0);
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2439 assert(PySet_Size(dup2) == 3);
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2440 assert(_PySet_Update(dup2, dup) == 0);
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2441 assert(PySet_Size(dup2) == 3);
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2442 Py_DECREF(dup2);
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2443
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2444 /* Raise SystemError when self argument is not a set or frozenset. */
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2445 t = PyTuple_New(0);
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2446 assertRaises(PySet_Size(t) == -1, PyExc_SystemError);
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2447 assertRaises(PySet_Contains(t, elem) == -1, PyExc_SystemError);
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2448 Py_DECREF(t);
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2449
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diff changeset
2450 /* Raise SystemError when self argument is not a set. */
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2451 f = PyFrozenSet_New(dup);
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2452 assert(PySet_Size(f) == 3);
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2453 assert(PyFrozenSet_CheckExact(f));
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2454 assertRaises(PySet_Discard(f, elem) == -1, PyExc_SystemError);
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2455 assertRaises(PySet_Pop(f) == NULL, PyExc_SystemError);
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2456 Py_DECREF(f);
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2457
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2458 /* Raise KeyError when popping from an empty set */
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2459 assert(PyNumber_InPlaceSubtract(ob, ob) == ob);
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2460 Py_DECREF(ob);
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2461 assert(PySet_GET_SIZE(ob) == 0);
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2462 assertRaises(PySet_Pop(ob) == NULL, PyExc_KeyError);
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2463
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2464 /* Restore the set from the copy using the PyNumber API */
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2465 assert(PyNumber_InPlaceOr(ob, dup) == ob);
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2466 Py_DECREF(ob);
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2467
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2468 /* Verify constructors accept NULL arguments */
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2469 f = PySet_New(NULL);
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2470 assert(f != NULL);
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2471 assert(PySet_GET_SIZE(f) == 0);
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2472 Py_DECREF(f);
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2473 f = PyFrozenSet_New(NULL);
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2474 assert(f != NULL);
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parents: 60712
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2475 assert(PyFrozenSet_CheckExact(f));
cab14be0ada1 Recorded merge of revisions 81029 via svnmerge from
Antoine Pitrou <solipsis@pitrou.net>
parents: 60712
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2476 assert(PySet_GET_SIZE(f) == 0);
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parents: 60712
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2477 Py_DECREF(f);
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2478
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2479 Py_DECREF(elem);
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2480 Py_DECREF(dup);
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2481 Py_RETURN_TRUE;
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2482 }
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2483
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2484 #undef assertRaises
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2485
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2486 #endif