test/stack_tests.c

Sat, 10 Aug 2019 08:44:36 +0200

author
Mike Becker <universe@uap-core.de>
date
Sat, 10 Aug 2019 08:44:36 +0200
branch
feature/array
changeset 349
05957b1d10a5
parent 259
2f5dea574a75
permissions
-rw-r--r--

adds a broader set of compare and distance functions

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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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2f5dea574a75 modules documentation
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4 * Copyright 2017 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 "stack_tests.h"
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30
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31 #define test_ucx_stack_before \
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32 char space[99]; \
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33 UcxStack stack; \
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34 ucx_stack_init(&stack, space, 99) \
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35
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36 UCX_TEST(test_ucx_stack_init) {
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37
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38 test_ucx_stack_before;
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39
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40 UCX_TEST_BEGIN
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41
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42 UCX_TEST_ASSERT(
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43 stack.allocator.malloc == (ucx_allocator_malloc) ucx_stack_malloc &&
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44 stack.allocator.calloc == (ucx_allocator_calloc) ucx_stack_calloc &&
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45 stack.allocator.realloc == (ucx_allocator_realloc) ucx_stack_realloc &&
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46 stack.allocator.free == (ucx_allocator_free) ucx_stack_free &&
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47 stack.allocator.pool == &stack,
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48 "allocator not properly set");
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49
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50 UCX_TEST_ASSERT(!stack.top && stack.space == space
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51 && stack.size == 99 - 99 % sizeof(void*),
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52 "struct fields not properly set");
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53
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54 UCX_TEST_END
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55 }
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56
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57 UCX_TEST(test_ucx_stack_malloc) {
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59 test_ucx_stack_before;
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61 const size_t metasize = sizeof(struct ucx_stack_metadata);
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64 char* first = (char*) ucx_stack_malloc(&stack, 30);
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65 char* second = (char*) ucx_stack_malloc(&stack, 30);
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66 char* full = (char*) ucx_stack_malloc(&stack, 30);
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68 memcpy(first, "012345678901234567890123456789", 30);
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69 memcpy(second, "abcdefghijklmnopqrstuvwxyzABCD", 30);
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71 UCX_TEST_BEGIN
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73 UCX_TEST_ASSERT(!memcmp(space + metasize,
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74 "012345678901234567890123456789", 30), "first element corrupted");
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75 UCX_TEST_ASSERT(!memcmp(space + 32+2*metasize,
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76 "abcdefghijklmnopqrstuvwxyzABCD", 30), "first element corrupted");
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78 UCX_TEST_ASSERT(!full, "stack can be overflowed");
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79 UCX_TEST_ASSERT(stack.top == space + 32 + 2*metasize, "wrong top pointer");
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80
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81 if (3*metasize < 32) {
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82 UCX_TEST_ASSERT(ucx_stack_avail(&stack) == 32-3*metasize,
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83 "wrong remaining available memory");
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84 } else {
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85 UCX_TEST_ASSERT(ucx_stack_avail(&stack) == 0,
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86 "wrong remaining available memory");
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87 }
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88
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89 UCX_TEST_END
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90 }
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91
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92 UCX_TEST(test_ucx_stack_calloc) {
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93
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94 test_ucx_stack_before;
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95
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96 char zeros[99];
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97 memset(zeros, 0, 99);
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98 memset(space, 32, 99);
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99 ucx_stack_calloc(&stack, 4, sizeof(int));
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100
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101 UCX_TEST_BEGIN
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102
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103 UCX_TEST_ASSERT(!memcmp(space+sizeof(struct ucx_stack_metadata),
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104 zeros, 4*sizeof(int)), "memory not nulled");
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105 UCX_TEST_ASSERT(!memcmp(space+sizeof(struct ucx_stack_metadata)
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106 +4*sizeof(int), " ", 10), "too much memory nulled");
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107
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108 UCX_TEST_END
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109 }
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111 UCX_TEST(test_ucx_stack_free) {
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112
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113 test_ucx_stack_before;
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114
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115 void *fst = ucx_stack_malloc(&stack, 10);
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116 void *snd = ucx_stack_malloc(&stack, 10);
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117 void *thrd = ucx_stack_malloc(&stack, 10);
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118
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119 UCX_TEST_BEGIN
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120
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121 UCX_TEST_ASSERT(stack.top == thrd, "wrong stack");
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122 UCX_TEST_ASSERT(((struct ucx_stack_metadata*) thrd - 1)->prev == snd,
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123 "wrong thrd prev pointer before free");
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124
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125 ucx_stack_free(&stack, snd);
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126
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127 UCX_TEST_ASSERT(((struct ucx_stack_metadata*) thrd - 1)->prev == fst,
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128 "wrong thrd prev pointer after freeing snd");
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129 UCX_TEST_ASSERT(stack.top == thrd, "wrong top after freeing snd");
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130
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131 ucx_stack_free(&stack, thrd);
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132
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133 UCX_TEST_ASSERT(stack.top == fst, "wrong top after freeing thrd");
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134
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135 UCX_TEST_END
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136 }
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138 UCX_TEST(test_ucx_stack_realloc) {
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139
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140 test_ucx_stack_before;
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141
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142 void *fst = ucx_stack_malloc(&stack, 14);
185
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143 void *snd = ucx_stack_malloc(&stack, 10);
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144
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145 UCX_TEST_BEGIN
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146
185
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147 void *nfst = ucx_stack_realloc(&stack, fst, 16);
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148 UCX_TEST_ASSERT(nfst == fst, "unnecessary move on reallocation");
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149 UCX_TEST_ASSERT(((struct ucx_stack_metadata*)fst - 1)->size == 16,
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150 "wrong size after reallocation");
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151
185
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152 void *nsnd = ucx_stack_realloc(&stack, snd, 30);
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153 UCX_TEST_ASSERT(nsnd == snd, "unnecessary move on top reallocation");
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154 UCX_TEST_ASSERT(ucx_stack_topsize(&stack) == 30,
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155 "wrong size after top reallocation");
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156
185
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157 nsnd = ucx_stack_realloc(&stack, snd, 5);
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158 UCX_TEST_ASSERT(nsnd == snd, "unnecessary move on top shrink");
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159 UCX_TEST_ASSERT(ucx_stack_topsize(&stack) == 5,
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160 "wrong size after top shrink");
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161 UCX_TEST_ASSERT(ucx_stack_avail(&stack) ==
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162 72-3*sizeof(struct ucx_stack_metadata), "wrong size after top shrink");
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163
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164 nfst = ucx_stack_realloc(&stack, fst, 24);
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165 UCX_TEST_ASSERT(nfst != fst, "missing move on huge reallocation");
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166 UCX_TEST_ASSERT(stack.top == nfst, "wrong top after huge reallocation");
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167 UCX_TEST_ASSERT(ucx_stack_topsize(&stack) == 24,
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168 "wrong size after huge reallocation");
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169 UCX_TEST_ASSERT(!((struct ucx_stack_metadata*)snd - 1)->prev,
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170 "element not freed after huge reallocation");
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171
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172 UCX_TEST_END
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173 }
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174
185
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175 UCX_TEST(test_ucx_stack_pop) {
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176
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177 test_ucx_stack_before;
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178 memset(space, 32, 99);
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179
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180 void *fst = ucx_stack_malloc(&stack, 10);
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181 void *snd = ucx_stack_malloc(&stack, 10);
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182 ucx_stack_malloc(&stack, 10);
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183
185
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184 char buf[16];
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185
185
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186 UCX_TEST_BEGIN
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187
185
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188 memset(buf, '0', 16);
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189 ucx_stack_pop(&stack, buf);
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190 UCX_TEST_ASSERT(memcmp(buf, " 000000", 16) == 0,
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191 "popped wrong content");
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192 UCX_TEST_ASSERT(stack.top == snd, "wrong top after pop");
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193
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194 memset(buf, '0', 16);
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195 ucx_stack_popn(&stack, buf, 5);
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196 UCX_TEST_ASSERT(memcmp(buf, " 00000000000", 16) == 0,
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197 "n-popped wrong content");
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198 UCX_TEST_ASSERT(stack.top == fst, "wrong top after pop");
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199
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200 ucx_stack_pop(&stack, buf);
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201 UCX_TEST_ASSERT(!stack.top, "top not NULL after last pop");
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202
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203 memset(buf, '0', 16);
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204 ucx_stack_pop(&stack, buf);
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205 UCX_TEST_ASSERT(memcmp(buf, "0000000000000000", 16) == 0,
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206 "content not unchanged after empty pop");
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207
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208 UCX_TEST_END
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209 }

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