Mercurial > cpython-lru_cache-weakref

annotate Lib/test/test_array.py @ 14984:ece6c19edcc1 legacy-trunk

Find changesets by keywords (author, files, the commit message), revision number or hash, or revset expression.
Remove some debugging prints.
author Greg Ward <gward@python.net>
date Tue, 03 Oct 2000 03:32:37 +0000
parents 1ec6c63347ea
children 07f24261c6e6
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
rev   line source
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diff changeset
1 #! /usr/bin/env python
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2 """Test the arraymodule.
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3 Roger E. Masse
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4 """
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5 import array
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6 from test_support import verbose, TESTFN, unlink, TestFailed
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7
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8 def main():
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9
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10 testtype('c', 'c')
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11
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12 for type in (['b', 'h', 'i', 'l', 'f', 'd']):
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13 testtype(type, 1)
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14
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15 unlink(TESTFN)
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16
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17
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18 def testoverflow(type, lowerLimit, upperLimit):
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19 # should not overflow assigning lower limit
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20 if verbose:
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21 print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit`)
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22 try:
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23 a = array.array(type, [lowerLimit])
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24 except:
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25 raise TestFailed, "array(%s) overflowed assigning %s" %\
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26 (`type`, `lowerLimit`)
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27 # should overflow assigning less than lower limit
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28 if verbose:
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29 print "overflow test: array(%s, [%s])" % (`type`, `lowerLimit-1`)
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30 try:
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31 a = array.array(type, [lowerLimit-1])
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32 raise TestFailed, "array(%s) did not overflow assigning %s" %\
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33 (`type`, `lowerLimit-1`)
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34 except OverflowError:
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35 pass
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36 # should not overflow assigning upper limit
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37 if verbose:
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38 print "overflow test: array(%s, [%s])" % (`type`, `upperLimit`)
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39 try:
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40 a = array.array(type, [upperLimit])
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41 except:
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42 raise TestFailed, "array(%s) overflowed assigning %s" %\
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43 (`type`, `upperLimit`)
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44 # should overflow assigning more than upper limit
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45 if verbose:
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46 print "overflow test: array(%s, [%s])" % (`type`, `upperLimit+1`)
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47 try:
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48 a = array.array(type, [upperLimit+1])
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49 raise TestFailed, "array(%s) did not overflow assigning %s" %\
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50 (`type`, `upperLimit+1`)
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51 except OverflowError:
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52 pass
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53
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54
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55
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56 def testtype(type, example):
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57
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58 a = array.array(type)
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59 a.append(example)
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60 if verbose:
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61 print 40*'*'
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62 print 'array after append: ', a
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63 a.typecode
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64 a.itemsize
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65 if a.typecode in ('i', 'b', 'h', 'l'):
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66 a.byteswap()
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67
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68 if a.typecode == 'c':
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69 f = open(TESTFN, "w")
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70 f.write("The quick brown fox jumps over the lazy dog.\n")
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71 f.close()
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72 f = open(TESTFN, 'r')
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73 a.fromfile(f, 10)
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74 f.close()
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75 if verbose:
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76 print 'char array with 10 bytes of TESTFN appended: ', a
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77 a.fromlist(['a', 'b', 'c'])
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78 if verbose:
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79 print 'char array with list appended: ', a
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80
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81 a.insert(0, example)
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82 if verbose:
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83 print 'array of %s after inserting another:' % a.typecode, a
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84 f = open(TESTFN, 'w')
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85 a.tofile(f)
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86 f.close()
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87 a.tolist()
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88 a.tostring()
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89 if verbose:
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90 print 'array of %s converted to a list: ' % a.typecode, a.tolist()
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91 if verbose:
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92 print 'array of %s converted to a string: ' \
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93 % a.typecode, `a.tostring()`
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94
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95 if type == 'c':
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96 a = array.array(type, "abcde")
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97 a[:-1] = a
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98 if a != array.array(type, "abcdee"):
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99 raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
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100 a = array.array(type, "abcde")
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101 a[1:] = a
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102 if a != array.array(type, "aabcde"):
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103 raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
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104 a = array.array(type, "abcde")
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105 a[1:-1] = a
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106 if a != array.array(type, "aabcdee"):
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107 raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
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108 if a.index("e") != 5:
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109 raise TestFailed, "array(%s) index-test" % `type`
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110 if a.count("a") != 2:
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111 raise TestFailed, "array(%s) count-test" % `type`
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112 a.remove("e")
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113 if a != array.array(type, "aabcde"):
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114 raise TestFailed, "array(%s) remove-test" % `type`
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115 if a.pop(0) != "a":
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116 raise TestFailed, "array(%s) pop-test" % `type`
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117 if a.pop(1) != "b":
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118 raise TestFailed, "array(%s) pop-test" % `type`
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119 a.extend(array.array(type, "xyz"))
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120 if a != array.array(type, "acdexyz"):
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121 raise TestFailed, "array(%s) extend-test" % `type`
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122 a.pop()
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123 a.pop()
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124 a.pop()
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125 x = a.pop()
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126 if x != 'e':
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127 raise TestFailed, "array(%s) pop-test" % `type`
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128 if a != array.array(type, "acd"):
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129 raise TestFailed, "array(%s) pop-test" % `type`
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130 a.reverse()
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131 if a != array.array(type, "dca"):
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132 raise TestFailed, "array(%s) reverse-test" % `type`
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133 else:
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134 a = array.array(type, [1, 2, 3, 4, 5])
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135 a[:-1] = a
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136 if a != array.array(type, [1, 2, 3, 4, 5, 5]):
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137 raise TestFailed, "array(%s) self-slice-assign (head)" % `type`
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138 a = array.array(type, [1, 2, 3, 4, 5])
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139 a[1:] = a
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140 if a != array.array(type, [1, 1, 2, 3, 4, 5]):
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141 raise TestFailed, "array(%s) self-slice-assign (tail)" % `type`
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142 a = array.array(type, [1, 2, 3, 4, 5])
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143 a[1:-1] = a
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144 if a != array.array(type, [1, 1, 2, 3, 4, 5, 5]):
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145 raise TestFailed, "array(%s) self-slice-assign (cntr)" % `type`
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146 if a.index(5) != 5:
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147 raise TestFailed, "array(%s) index-test" % `type`
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148 if a.count(1) != 2:
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149 raise TestFailed, "array(%s) count-test" % `type`
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150 a.remove(5)
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151 if a != array.array(type, [1, 1, 2, 3, 4, 5]):
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152 raise TestFailed, "array(%s) remove-test" % `type`
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153 if a.pop(0) != 1:
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154 raise TestFailed, "array(%s) pop-test" % `type`
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155 if a.pop(1) != 2:
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156 raise TestFailed, "array(%s) pop-test" % `type`
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157 a.extend(array.array(type, [7, 8, 9]))
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158 if a != array.array(type, [1, 3, 4, 5, 7, 8, 9]):
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159 raise TestFailed, "array(%s) extend-test" % `type`
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160 a.pop()
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161 a.pop()
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162 a.pop()
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163 x = a.pop()
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164 if x != 5:
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165 raise TestFailed, "array(%s) pop-test" % `type`
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166 if a != array.array(type, [1, 3, 4]):
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167 raise TestFailed, "array(%s) pop-test" % `type`
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168 a.reverse()
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169 if a != array.array(type, [4, 3, 1]):
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170 raise TestFailed, "array(%s) reverse-test" % `type`
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171
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172 # test that overflow exceptions are raised as expected for assignment
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173 # to array of specific integral types
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174 from math import pow
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175 if type in ('b', 'h', 'i', 'l'):
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176 # check signed and unsigned versions
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177 a = array.array(type)
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178 signedLowerLimit = -1 * long(pow(2, a.itemsize * 8 - 1))
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179 signedUpperLimit = long(pow(2, a.itemsize * 8 - 1)) - 1L
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180 unsignedLowerLimit = 0
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181 unsignedUpperLimit = long(pow(2, a.itemsize * 8)) - 1L
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182 testoverflow(type, signedLowerLimit, signedUpperLimit)
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183 testoverflow(type.upper(), unsignedLowerLimit, unsignedUpperLimit)
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184
b76df68099a5 Trent Mick <trentm@activestate.com>:
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185
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186
4811
9ae3cccfa7cd Many scripts, but small changes. Update the way the scripts obtain the
Roger E. Masse <rmasse@newcnri.cnri.reston.va.us>
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187 main()
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188