tests/test_utils.cpp

Mon, 03 Jul 2023 18:37:19 +0200

author
Mike Becker <universe@uap-core.de>
date
Mon, 03 Jul 2023 18:37:19 +0200
changeset 731
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parent 674
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permissions
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add documentation for the lists

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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/utils.h"
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30
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31 #include "cx/buffer.h"
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32
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33 #include <gtest/gtest.h>
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34
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35 TEST(Utils, cx_stream_bncopy) {
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36 CxBuffer source, target;
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37 char sbuf[32], tbuf[32];
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38 memset(tbuf, 0, 32);
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39 cxBufferInit(&source, sbuf, 32, nullptr, 0);
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40 cxBufferInit(&target, tbuf, 32, nullptr, 0);
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41 cxBufferPutString(&source, "This is a stream copy test.");
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42 cxBufferSeek(&source, 0, SEEK_SET);
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43
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44 char tmp[4];
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45 size_t result = cx_stream_bncopy(&source, &target,
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46 (cx_read_func) cxBufferRead,
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47 (cx_write_func) cxBufferWrite,
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48 tmp, 4, 20);
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49 EXPECT_EQ(20, result);
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50 EXPECT_EQ(20, target.size);
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51 EXPECT_STREQ("This is a stream cop\0", tbuf);
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52
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53 result = cx_stream_bcopy(&source, &target,
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54 (cx_read_func) cxBufferRead,
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55 (cx_write_func) cxBufferWrite,
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56 nullptr, 16);
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57
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58 EXPECT_EQ(7, result);
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59 EXPECT_EQ(27, target.size);
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60 EXPECT_STREQ("This is a stream copy test.\0", tbuf);
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61
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62 cxBufferDestroy(&source);
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63 cxBufferDestroy(&target);
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64 }
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65
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66 TEST(Utils, cx_stream_ncopy) {
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67 CxBuffer source, target;
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68 char sbuf[32], tbuf[32];
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69 memset(tbuf, 0, 32);
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70 cxBufferInit(&source, sbuf, 32, nullptr, 0);
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71 cxBufferInit(&target, tbuf, 32, nullptr, 0);
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72 cxBufferPutString(&source, "This is a stream copy test.");
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73 cxBufferSeek(&source, 0, SEEK_SET);
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74
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75 size_t result = cx_stream_ncopy(&source, &target,
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76 (cx_read_func) cxBufferRead,
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77 (cx_write_func) cxBufferWrite,
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78 20);
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79 EXPECT_EQ(20, result);
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80 EXPECT_EQ(20, target.size);
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81 EXPECT_STREQ("This is a stream cop\0", tbuf);
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82
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83 result = cx_stream_copy(&source, &target,
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84 (cx_read_func) cxBufferRead,
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85 (cx_write_func) cxBufferWrite);
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86
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87 EXPECT_EQ(7, result);
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88 EXPECT_EQ(27, target.size);
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89 EXPECT_STREQ("This is a stream copy test.\0", tbuf);
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90
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91 cxBufferDestroy(&source);
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92 cxBufferDestroy(&target);
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93 }
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94
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95 TEST(Utils, ForN) {
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96 unsigned j;
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97 j = 0;
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98 cx_for_n(i, 50) {
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99 EXPECT_EQ(i, j);
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100 j++;
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101 }
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102 }
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103
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104 TEST(Utils, swap_ptr) {
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105 int i = 5;
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106 int j = 8;
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107 int *ip = &i;
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108 int *jp = &j;
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109 cx_swap_ptr(ip, jp);
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110 EXPECT_EQ(ip, &j);
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111 EXPECT_EQ(jp, &i);
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112 }
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113
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114 TEST(Utils, szmul) {
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115 size_t r;
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116 int e;
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117 e = cx_szmul(5, 7, &r);
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118 EXPECT_EQ(0, e);
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119 EXPECT_EQ(35, r);
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120
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121 size_t s = SIZE_MAX & ~3;
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122
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123 e = cx_szmul(s / 4, 2, &r);
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124 EXPECT_EQ(0, e);
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125 EXPECT_EQ(s / 2, r);
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126 e = cx_szmul(2, s / 4, &r);
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127 EXPECT_EQ(0, e);
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128 EXPECT_EQ(s / 2, r);
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129
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130 e = cx_szmul(s / 4, 4, &r);
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131 EXPECT_EQ(0, e);
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132 EXPECT_EQ(s, r);
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133
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134 e = cx_szmul(4, s / 4, &r);
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135 EXPECT_EQ(0, e);
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136 EXPECT_EQ(s, r);
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137
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138 e = cx_szmul(s / 4, 5, &r);
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139 EXPECT_NE(0, e);
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140
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141 e = cx_szmul(5, s / 4, &r);
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142 EXPECT_NE(0, e);
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143
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144 e = cx_szmul(SIZE_MAX - 4, 0, &r);
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145 EXPECT_EQ(0, e);
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146 EXPECT_EQ(0, r);
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147
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148 e = cx_szmul(0, SIZE_MAX - 1, &r);
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149 EXPECT_EQ(0, e);
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150 EXPECT_EQ(0, r);
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151
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152 e = cx_szmul(SIZE_MAX, 0, &r);
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153 EXPECT_EQ(0, e);
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154 EXPECT_EQ(0, r);
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155
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156 e = cx_szmul(0, SIZE_MAX, &r);
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157 EXPECT_EQ(0, e);
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158 EXPECT_EQ(0, r);
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159
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160 e = cx_szmul(0, 0, &r);
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161 EXPECT_EQ(0, e);
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162 EXPECT_EQ(0, r);
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163 }
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164
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165 #ifdef CX_SZMUL_BUILTIN
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166
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167 // also test the custom implementation
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168 struct Utils_szmul_impl : ::testing::Test {
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169 #undef CX_SZMUL_BUILTIN
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170
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171 #include "../src/szmul.c"
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172
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173 #define CX_SZMUL_BUILTIN
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174 };
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175
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176 TEST_F(Utils_szmul_impl, Test) {
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177 size_t r;
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178 int e;
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179 e = cx_szmul_impl(5, 7, &r);
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180 EXPECT_EQ(0, e);
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181 EXPECT_EQ(35, r);
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182
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183 size_t s = SIZE_MAX & ~3;
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184
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185 e = cx_szmul_impl(s / 4, 2, &r);
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186 EXPECT_EQ(0, e);
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187 EXPECT_EQ(s / 2, r);
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188 e = cx_szmul_impl(2, s / 4, &r);
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189 EXPECT_EQ(0, e);
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190 EXPECT_EQ(s / 2, r);
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191
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192 e = cx_szmul_impl(s / 4, 4, &r);
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193 EXPECT_EQ(0, e);
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194 EXPECT_EQ(s, r);
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195
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196 e = cx_szmul_impl(4, s / 4, &r);
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197 EXPECT_EQ(0, e);
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198 EXPECT_EQ(s, r);
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199
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200 e = cx_szmul_impl(s / 4, 5, &r);
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201 EXPECT_NE(0, e);
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202
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203 e = cx_szmul_impl(5, s / 4, &r);
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204 EXPECT_NE(0, e);
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205
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206 e = cx_szmul_impl(SIZE_MAX - 4, 0, &r);
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207 EXPECT_EQ(0, e);
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208 EXPECT_EQ(0, r);
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209
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210 e = cx_szmul_impl(0, SIZE_MAX - 1, &r);
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211 EXPECT_EQ(0, e);
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212 EXPECT_EQ(0, r);
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213
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214 e = cx_szmul_impl(SIZE_MAX, 0, &r);
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215 EXPECT_EQ(0, e);
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216 EXPECT_EQ(0, r);
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217
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218 e = cx_szmul_impl(0, SIZE_MAX, &r);
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219 EXPECT_EQ(0, e);
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220 EXPECT_EQ(0, r);
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221
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222 e = cx_szmul_impl(0, 0, &r);
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223 EXPECT_EQ(0, e);
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224 EXPECT_EQ(0, r);
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225 }
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226
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227 #endif // CX_SZMUL_BUILTIN

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