Sun, 17 Dec 2023 15:33:50 +0100
fix faulty string to int conversion utilities
Probably it was expected that errno is set to EINVAL when illegal characters are encountered. But this is not standard and does not happen on every system, allowing illegal strings to be parsed as valid integers.
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1 | /* |
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2 | * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER. |
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3 | * |
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4 | * Copyright 2021 Mike Becker, Olaf Wintermann All rights reserved. |
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5 | * |
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6 | * Redistribution and use in source and binary forms, with or without |
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7 | * modification, are permitted provided that the following conditions are met: |
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8 | * |
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9 | * 1. Redistributions of source code must retain the above copyright |
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10 | * notice, this list of conditions and the following disclaimer. |
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11 | * |
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12 | * 2. Redistributions in binary form must reproduce the above copyright |
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13 | * notice, this list of conditions and the following disclaimer in the |
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14 | * documentation and/or other materials provided with the distribution. |
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15 | * |
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16 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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17 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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18 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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19 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE |
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20 | * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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21 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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22 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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23 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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24 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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25 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE |
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26 | * POSSIBILITY OF SUCH DAMAGE. |
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27 | */ |
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28 | |
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29 | #include "cx/compare.h" |
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30 | |
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31 | #include <math.h> |
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32 | |
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33 | int cx_cmp_int(void const *i1, void const *i2) { |
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34 | int a = *((const int *) i1); |
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35 | int b = *((const int *) i2); |
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36 | if (a == b) { |
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37 | return 0; |
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38 | } else { |
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39 | return a < b ? -1 : 1; |
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40 | } |
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41 | } |
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42 | |
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43 | int cx_cmp_longint(void const *i1, void const *i2) { |
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44 | long int a = *((const long int *) i1); |
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45 | long int b = *((const long int *) i2); |
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46 | if (a == b) { |
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47 | return 0; |
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48 | } else { |
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49 | return a < b ? -1 : 1; |
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50 | } |
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51 | } |
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52 | |
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53 | int cx_cmp_longlong(void const *i1, void const *i2) { |
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54 | long long a = *((const long long *) i1); |
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55 | long long b = *((const long long *) i2); |
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56 | if (a == b) { |
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57 | return 0; |
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58 | } else { |
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59 | return a < b ? -1 : 1; |
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60 | } |
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61 | } |
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62 | |
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63 | int cx_cmp_int16(void const *i1, void const *i2) { |
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64 | int16_t a = *((const int16_t *) i1); |
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65 | int16_t b = *((const int16_t *) i2); |
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66 | if (a == b) { |
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67 | return 0; |
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68 | } else { |
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69 | return a < b ? -1 : 1; |
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70 | } |
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71 | } |
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72 | |
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73 | int cx_cmp_int32(void const *i1, void const *i2) { |
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74 | int32_t a = *((const int32_t *) i1); |
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75 | int32_t b = *((const int32_t *) i2); |
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76 | if (a == b) { |
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77 | return 0; |
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78 | } else { |
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79 | return a < b ? -1 : 1; |
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80 | } |
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81 | } |
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82 | |
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83 | int cx_cmp_int64(void const *i1, void const *i2) { |
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84 | int64_t a = *((const int64_t *) i1); |
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85 | int64_t b = *((const int64_t *) i2); |
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86 | if (a == b) { |
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87 | return 0; |
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88 | } else { |
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89 | return a < b ? -1 : 1; |
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90 | } |
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91 | } |
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92 | |
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93 | int cx_cmp_uint(void const *i1, void const *i2) { |
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94 | unsigned int a = *((const unsigned int *) i1); |
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95 | unsigned int b = *((const unsigned int *) i2); |
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96 | if (a == b) { |
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97 | return 0; |
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98 | } else { |
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99 | return a < b ? -1 : 1; |
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100 | } |
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101 | } |
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102 | |
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103 | int cx_cmp_ulongint(void const *i1, void const *i2) { |
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104 | unsigned long int a = *((const unsigned long int *) i1); |
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105 | unsigned long int b = *((const unsigned long int *) i2); |
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106 | if (a == b) { |
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107 | return 0; |
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108 | } else { |
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109 | return a < b ? -1 : 1; |
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110 | } |
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111 | } |
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112 | |
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113 | int cx_cmp_ulonglong(void const *i1, void const *i2) { |
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114 | unsigned long long a = *((const unsigned long long *) i1); |
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115 | unsigned long long b = *((const unsigned long long *) i2); |
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116 | if (a == b) { |
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117 | return 0; |
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118 | } else { |
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119 | return a < b ? -1 : 1; |
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120 | } |
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121 | } |
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122 | |
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123 | int cx_cmp_uint16(void const *i1, void const *i2) { |
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124 | uint16_t a = *((const uint16_t *) i1); |
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125 | uint16_t b = *((const uint16_t *) i2); |
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126 | if (a == b) { |
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127 | return 0; |
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128 | } else { |
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129 | return a < b ? -1 : 1; |
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130 | } |
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131 | } |
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132 | |
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133 | int cx_cmp_uint32(void const *i1, void const *i2) { |
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134 | uint32_t a = *((const uint32_t *) i1); |
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135 | uint32_t b = *((const uint32_t *) i2); |
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136 | if (a == b) { |
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137 | return 0; |
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138 | } else { |
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139 | return a < b ? -1 : 1; |
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140 | } |
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141 | } |
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142 | |
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143 | int cx_cmp_uint64(void const *i1, void const *i2) { |
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144 | uint64_t a = *((const uint64_t *) i1); |
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145 | uint64_t b = *((const uint64_t *) i2); |
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146 | if (a == b) { |
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147 | return 0; |
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148 | } else { |
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149 | return a < b ? -1 : 1; |
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150 | } |
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151 | } |
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152 | |
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153 | int cx_cmp_float(void const *f1, void const *f2) { |
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154 | float a = *((const float *) f1); |
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155 | float b = *((const float *) f2); |
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156 | if (fabsf(a - b) < 1e-6f) { |
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157 | return 0; |
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158 | } else { |
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159 | return a < b ? -1 : 1; |
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160 | } |
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161 | } |
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162 | |
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163 | int cx_cmp_double( |
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164 | void const *d1, |
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165 | void const *d2 |
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166 | ) { |
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167 | double a = *((const double *) d1); |
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168 | double b = *((const double *) d2); |
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169 | if (fabs(a - b) < 1e-14) { |
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170 | return 0; |
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171 | } else { |
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172 | return a < b ? -1 : 1; |
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173 | } |
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174 | } |
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175 | |
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176 | int cx_cmp_intptr( |
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177 | void const *ptr1, |
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178 | void const *ptr2 |
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179 | ) { |
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180 | intptr_t p1 = *(const intptr_t *) ptr1; |
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181 | intptr_t p2 = *(const intptr_t *) ptr2; |
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182 | if (p1 == p2) { |
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183 | return 0; |
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184 | } else { |
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185 | return p1 < p2 ? -1 : 1; |
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186 | } |
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187 | } |
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188 | |
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189 | int cx_cmp_uintptr( |
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190 | void const *ptr1, |
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191 | void const *ptr2 |
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192 | ) { |
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193 | uintptr_t p1 = *(const uintptr_t *) ptr1; |
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194 | uintptr_t p2 = *(const uintptr_t *) ptr2; |
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195 | if (p1 == p2) { |
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196 | return 0; |
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197 | } else { |
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198 | return p1 < p2 ? -1 : 1; |
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199 | } |
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200 | } |
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201 |