1 | #!./perl |
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2 | |
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3 | # |
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4 | # test the bit operators '&', '|', '^', '~', '<<', and '>>' |
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5 | # |
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6 | |
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7 | BEGIN { |
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8 | chdir 't' if -d 't'; |
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9 | @INC = '../lib'; |
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10 | } |
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11 | |
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12 | print "1..44\n"; |
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13 | |
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14 | # numerics |
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15 | print ((0xdead & 0xbeef) == 0x9ead ? "ok 1\n" : "not ok 1\n"); |
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16 | print ((0xdead | 0xbeef) == 0xfeef ? "ok 2\n" : "not ok 2\n"); |
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17 | print ((0xdead ^ 0xbeef) == 0x6042 ? "ok 3\n" : "not ok 3\n"); |
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18 | print ((~0xdead & 0xbeef) == 0x2042 ? "ok 4\n" : "not ok 4\n"); |
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19 | |
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20 | # shifts |
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21 | print ((257 << 7) == 32896 ? "ok 5\n" : "not ok 5\n"); |
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22 | print ((33023 >> 7) == 257 ? "ok 6\n" : "not ok 6\n"); |
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23 | |
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24 | # signed vs. unsigned |
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25 | print ((~0 > 0 && do { use integer; ~0 } == -1) |
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26 | ? "ok 7\n" : "not ok 7\n"); |
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27 | |
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28 | my $bits = 0; |
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29 | for (my $i = ~0; $i; $i >>= 1) { ++$bits; } |
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30 | my $cusp = 1 << ($bits - 1); |
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31 | |
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32 | print ((($cusp & -1) > 0 && do { use integer; $cusp & -1 } < 0) |
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33 | ? "ok 8\n" : "not ok 8\n"); |
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34 | print ((($cusp | 1) > 0 && do { use integer; $cusp | 1 } < 0) |
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35 | ? "ok 9\n" : "not ok 9\n"); |
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36 | print ((($cusp ^ 1) > 0 && do { use integer; $cusp ^ 1 } < 0) |
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37 | ? "ok 10\n" : "not ok 10\n"); |
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38 | print (((1 << ($bits - 1)) == $cusp && |
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39 | do { use integer; 1 << ($bits - 1) } == -$cusp) |
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40 | ? "ok 11\n" : "not ok 11\n"); |
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41 | print ((($cusp >> 1) == ($cusp / 2) && |
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42 | do { use integer; abs($cusp >> 1) } == ($cusp / 2)) |
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43 | ? "ok 12\n" : "not ok 12\n"); |
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44 | |
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45 | $Aaz = chr(ord("A") & ord("z")); |
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46 | $Aoz = chr(ord("A") | ord("z")); |
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47 | $Axz = chr(ord("A") ^ ord("z")); |
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48 | |
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49 | # short strings |
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50 | print (("AAAAA" & "zzzzz") eq ($Aaz x 5) ? "ok 13\n" : "not ok 13\n"); |
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51 | print (("AAAAA" | "zzzzz") eq ($Aoz x 5) ? "ok 14\n" : "not ok 14\n"); |
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52 | print (("AAAAA" ^ "zzzzz") eq ($Axz x 5) ? "ok 15\n" : "not ok 15\n"); |
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53 | |
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54 | # long strings |
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55 | $foo = "A" x 150; |
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56 | $bar = "z" x 75; |
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57 | $zap = "A" x 75; |
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58 | # & truncates |
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59 | print (($foo & $bar) eq ($Aaz x 75 ) ? "ok 16\n" : "not ok 16\n"); |
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60 | # | does not truncate |
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61 | print (($foo | $bar) eq ($Aoz x 75 . $zap) ? "ok 17\n" : "not ok 17\n"); |
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62 | # ^ does not truncate |
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63 | print (($foo ^ $bar) eq ($Axz x 75 . $zap) ? "ok 18\n" : "not ok 18\n"); |
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64 | |
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65 | # |
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66 | print "ok \xFF\xFF\n" & "ok 19\n"; |
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67 | print "ok 20\n" | "ok \0\0\n"; |
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68 | print "o\000 \0001\000" ^ "\000k\0002\000\n"; |
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69 | |
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70 | # |
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71 | print "ok \x{FF}\x{FF}\n" & "ok 22\n"; |
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72 | print "ok 23\n" | "ok \x{0}\x{0}\n"; |
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73 | print "o\x{0} \x{0}4\x{0}" ^ "\x{0}k\x{0}2\x{0}\n"; |
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74 | |
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75 | # |
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76 | print "ok 25\n" if sprintf("%vd", v4095 & v801) eq 801; |
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77 | print "ok 26\n" if sprintf("%vd", v4095 | v801) eq 4095; |
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78 | print "ok 27\n" if sprintf("%vd", v4095 ^ v801) eq 3294; |
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79 | |
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80 | # |
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81 | print "ok 28\n" if sprintf("%vd", v4095.801.4095 & v801.4095) eq '801.801'; |
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82 | print "ok 29\n" if sprintf("%vd", v4095.801.4095 | v801.4095) eq '4095.4095.4095'; |
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83 | print "ok 30\n" if sprintf("%vd", v801.4095 ^ v4095.801.4095) eq '3294.3294.4095'; |
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84 | # |
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85 | print "ok 31\n" if sprintf("%vd", v120.300 & v200.400) eq '72.256'; |
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86 | print "ok 32\n" if sprintf("%vd", v120.300 | v200.400) eq '248.444'; |
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87 | print "ok 33\n" if sprintf("%vd", v120.300 ^ v200.400) eq '176.188'; |
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88 | # |
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89 | my $a = v120.300; |
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90 | my $b = v200.400; |
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91 | $a ^= $b; |
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92 | print "ok 34\n" if sprintf("%vd", $a) eq '176.188'; |
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93 | my $a = v120.300; |
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94 | my $b = v200.400; |
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95 | $a |= $b; |
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96 | print "ok 35\n" if sprintf("%vd", $a) eq '248.444'; |
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97 | |
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98 | # |
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99 | # UTF8 ~ behaviour |
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100 | # |
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101 | |
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102 | my $Is_EBCDIC = (ord('A') == 193) ? 1 : 0; |
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103 | |
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104 | my @not36; |
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105 | |
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106 | for (0x100...0xFFF) { |
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107 | $a = ~(chr $_); |
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108 | if ($Is_EBCDIC) { |
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109 | push @not36, sprintf("%#03X", $_) |
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110 | if $a ne chr(~$_) or length($a) != 1; |
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111 | } |
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112 | else { |
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113 | push @not36, sprintf("%#03X", $_) |
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114 | if $a ne chr(~$_) or length($a) != 1 or ~$a ne chr($_); |
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115 | } |
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116 | } |
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117 | if (@not36) { |
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118 | print "# test 36 failed\n"; |
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119 | print "not "; |
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120 | } |
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121 | print "ok 36\n"; |
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122 | |
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123 | my @not37; |
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124 | |
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125 | for my $i (0xEEE...0xF00) { |
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126 | for my $j (0x0..0x120) { |
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127 | $a = ~(chr ($i) . chr $j); |
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128 | if ($Is_EBCDIC) { |
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129 | push @not37, sprintf("%#03X %#03X", $i, $j) |
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130 | if $a ne chr(~$i).chr(~$j) or |
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131 | length($a) != 2; |
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132 | } |
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133 | else { |
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134 | push @not37, sprintf("%#03X %#03X", $i, $j) |
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135 | if $a ne chr(~$i).chr(~$j) or |
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136 | length($a) != 2 or |
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137 | ~$a ne chr($i).chr($j); |
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138 | } |
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139 | } |
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140 | } |
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141 | if (@not37) { |
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142 | print "# test 37 failed\n"; |
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143 | print "not "; |
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144 | } |
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145 | print "ok 37\n"; |
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146 | |
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147 | print "not " unless ~chr(~0) eq "\0" or $Is_EBCDIC; |
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148 | print "ok 38\n"; |
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149 | |
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150 | my @not39; |
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151 | |
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152 | for my $i (0x100..0x120) { |
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153 | for my $j (0x100...0x120) { |
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154 | push @not39, sprintf("%#03X %#03X", $i, $j) |
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155 | if ~(chr($i)|chr($j)) ne (~chr($i)&~chr($j)); |
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156 | } |
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157 | } |
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158 | if (@not39) { |
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159 | print "# test 39 failed\n"; |
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160 | print "not "; |
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161 | } |
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162 | print "ok 39\n"; |
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163 | |
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164 | my @not40; |
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165 | |
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166 | for my $i (0x100..0x120) { |
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167 | for my $j (0x100...0x120) { |
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168 | push @not40, sprintf("%#03X %#03X", $i, $j) |
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169 | if ~(chr($i)&chr($j)) ne (~chr($i)|~chr($j)); |
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170 | } |
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171 | } |
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172 | if (@not40) { |
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173 | print "# test 40 failed\n"; |
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174 | print "not "; |
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175 | } |
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176 | print "ok 40\n"; |
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177 | |
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178 | # More variations on 19 and 22. |
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179 | print "ok \xFF\x{FF}\n" & "ok 41\n"; |
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180 | print "ok \x{FF}\xFF\n" & "ok 42\n"; |
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181 | |
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182 | # Tests to see if you really can do casts negative floats to unsigned properly |
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183 | $neg1 = -1.0; |
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184 | print ((~ $neg1 == 0) ? "ok 43\n" : "not ok 43\n"); |
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185 | $neg7 = -7.0; |
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186 | print ((~ $neg7 == 6) ? "ok 44\n" : "not ok 44\n"); |
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