modules/rostests/winetests/msvcrt/heap.c

   1 /*
   2  * Unit test suite for memory functions
   3  *
   4  * Copyright 2003 Dimitrie O. Paun
   5  *
   6  * This library is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU Lesser General Public
   8  * License as published by the Free Software Foundation; either
   9  * version 2.1 of the License, or (at your option) any later version.
  10  *
  11  * This library is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14  * Lesser General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU Lesser General Public
  17  * License along with this library; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA
  19  */
  20
  21 #include "precomp.h"
  22
  23 #include <malloc.h>
  24
  25 static void (__cdecl *p_aligned_free)(void*) = NULL;
  26 static void * (__cdecl *p_aligned_malloc)(size_t,size_t) = NULL;
  27 static void * (__cdecl *p_aligned_offset_malloc)(size_t,size_t,size_t) = NULL;
  28 static void * (__cdecl *p_aligned_realloc)(void*,size_t,size_t) = NULL;
  29 static void * (__cdecl *p_aligned_offset_realloc)(void*,size_t,size_t,size_t) = NULL;
  30
  31 static void test_aligned_malloc(unsigned int size, unsigned int alignment)
  32 {
  33     void *mem;
  34
  35     mem = p_aligned_malloc(size, alignment);
  36
  37     if ((alignment & (alignment - 1)) == 0)
  38         ok(mem != NULL, "_aligned_malloc(%d, %d) failed\n", size, alignment);
  39     else
  40         ok(mem == NULL, "_aligned_malloc(%d, %d) should have failed\n", size, alignment);
  41
  42     if (mem)
  43     {
  44         ok(((DWORD_PTR)mem & (alignment ? alignment - 1 : 0)) == 0,
  45            "_aligned_malloc(%d, %d) not aligned: %p\n", size, alignment, mem);
  46         if (winetest_debug > 1)
  47         {
  48             void *saved;
  49             saved = *(void **)((DWORD_PTR)((char *)mem - sizeof(void *)) & ~(sizeof(void *) - 1));
  50             trace("_aligned_malloc(%3d, %3d) returns %p, saved = %p\n", size, alignment, mem, saved );
  51         }
  52         p_aligned_free(mem);
  53     }
  54     else
  55         ok(errno == EINVAL, "_aligned_malloc(%d, %d) errno: %d != %d\n", size, alignment, errno, EINVAL);
  56 }
  57
  58 static void test_aligned_offset_malloc(unsigned int size, unsigned int alignment, unsigned int offset)
  59 {
  60     void *mem;
  61
  62     mem = p_aligned_offset_malloc(size, alignment, offset);
  63
  64     if ((alignment & (alignment - 1)) == 0)
  65         if (offset < size)
  66             ok(mem != NULL, "_aligned_offset_malloc(%d, %d, %d) failed\n", size, alignment, offset);
  67         else
  68             ok(errno == EINVAL, "_aligned_offset_malloc(%d, %d, %d) errno: %d != %d\n", size, alignment, offset, errno, EINVAL);
  69     else
  70         ok(mem == NULL, "_aligned_offset_malloc(%d, %d, %d) should have failed\n", size, alignment, offset);
  71
  72     if (mem)
  73     {
  74         ok(((DWORD_PTR)((char *)mem + offset) & (alignment ? alignment - 1 : 0)) == 0,
  75            "_aligned_offset_malloc(%d, %d, %d) not aligned: %p\n", size, alignment, offset, mem);
  76         if (winetest_debug > 1)
  77         {
  78             void *saved;
  79             saved = *(void **)((DWORD_PTR)((char *)mem - sizeof(void *)) & ~(sizeof(void *) - 1));
  80             trace("_aligned_offset_malloc(%3d, %3d, %3d) returns %p, saved = %p\n",
  81                   size, alignment, offset, mem, saved);
  82         }
  83         p_aligned_free(mem);
  84     }
  85     else
  86         ok(errno == EINVAL, "_aligned_offset_malloc(%d, %d, %d) errno: %d != %d\n", size, alignment, offset, errno, EINVAL);
  87 }
  88
  89 static void test_aligned_realloc(unsigned int size1, unsigned int size2, unsigned int alignment)
  90 {
  91     void *mem, *mem1, *mem2;
  92
  93     mem = p_aligned_malloc(size1, alignment);
  94
  95     if ((alignment & (alignment - 1)) == 0)
  96         ok(mem != NULL, "_aligned_malloc(%d, %d) failed\n", size1, alignment);
  97     else
  98         ok(mem == NULL, "_aligned_malloc(%d, %d) should have failed\n", size1, alignment);
  99
 100     if (mem)
 101     {
 102         mem1 = malloc(size1);
 103         if (mem1)
 104         {
 105             unsigned int i;
 106             for (i = 0; i < size1; i++)
 107                 ((char *)mem)[i] = i + 1;
 108             memcpy(mem1, mem, size1);
 109         }
 110
 111         ok(((DWORD_PTR)mem & (alignment ? alignment - 1 : 0)) == 0,
 112            "_aligned_malloc(%d, %d) not aligned: %p\n", size1, alignment, mem);
 113         if (winetest_debug > 1)
 114         {
 115             void *saved;
 116             saved = *(void **)((DWORD_PTR)((char *)mem - sizeof(void *)) & ~(sizeof(void *) - 1));
 117             trace("_aligned_malloc(%3d, %3d) returns %p, saved = %p\n", size1, alignment, mem, saved);
 118         }
 119
 120         mem2 = p_aligned_realloc(mem, size2, alignment);
 121
 122         ok(mem2 != NULL, "_aligned_realloc(%p, %d, %d) failed\n", mem, size2, alignment);
 123
 124         if (mem2)
 125         {
 126             ok(((DWORD_PTR)mem2 & (alignment ? alignment - 1 : 0)) == 0,
 127                "_aligned_realloc(%p, %d, %d) not aligned: %p\n", mem, size2, alignment, mem2);
 128             if (winetest_debug > 1)
 129             {
 130                 void *saved;
 131                 saved = *(void **)((DWORD_PTR)((char *)mem2 - sizeof(void *)) & ~(sizeof(void *) - 1));
 132                 trace("_aligned_realloc(%p, %3d, %3d) returns %p, saved = %p\n",
 133                       mem, size2, alignment, mem2, saved);
 134             }
 135             if (mem1)
 136             {
 137                 ok(memcmp(mem2, mem1, min(size1, size2))==0, "_aligned_realloc(%p, %d, %d) has different data\n", mem, size2, alignment);
 138                 if (memcmp(mem2, mem1, min(size1, size2)) && winetest_debug > 1)
 139                 {
 140                     unsigned int i;
 141                     for (i = 0; i < min(size1, size2); i++)
 142                     {
 143                         if (((char *)mem2)[i] != ((char *)mem1)[i])
 144                             trace("%d: %02x != %02x\n", i, ((char *)mem2)[i] & 0xff, ((char *)mem1)[i] & 0xff);
 145                     }
 146                 }
 147             }
 148             p_aligned_free(mem2);
 149         } else {
 150             ok(errno == EINVAL, "_aligned_realloc(%p, %d, %d) errno: %d != %d\n", mem, size2, alignment, errno, EINVAL);
 151             p_aligned_free(mem);
 152         }
 153
 154         free(mem1);
 155     }
 156     else
 157         ok(errno == EINVAL, "_aligned_malloc(%d, %d) errno: %d != %d\n", size1, alignment, errno, EINVAL);
 158 }
 159
 160 static void test_aligned_offset_realloc(unsigned int size1, unsigned int size2,
 161                                         unsigned int alignment, unsigned int offset)
 162 {
 163     void *mem, *mem1, *mem2;
 164
 165     mem = p_aligned_offset_malloc(size1, alignment, offset);
 166
 167     if ((alignment & (alignment - 1)) == 0)
 168         ok(mem != NULL, "_aligned_offset_malloc(%d, %d, %d) failed\n", size1, alignment, offset);
 169     else
 170         ok(mem == NULL, "_aligned_offset_malloc(%d, %d, %d) should have failed\n", size1, alignment, offset);
 171
 172     if (mem)
 173     {
 174         mem1 = malloc(size1);
 175         if (mem1)
 176         {
 177             unsigned int i;
 178             for (i = 0; i < size1; i++)
 179                 ((char *)mem)[i] = i + 1;
 180             memcpy(mem1, mem, size1);
 181         }
 182
 183         ok(((DWORD_PTR)((char *)mem + offset) & (alignment ? alignment - 1 : 0)) == 0,
 184            "_aligned_offset_malloc(%d, %d, %d) not aligned: %p\n", size1, alignment, offset, mem);
 185         if (winetest_debug > 1)
 186         {
 187             void *saved;
 188             saved = *(void **)((DWORD_PTR)((char *)mem - sizeof(void *)) & ~(sizeof(void *) - 1));
 189             trace("_aligned_offset_malloc(%3d, %3d, %3d) returns %p, saved = %p\n",
 190                   size1, alignment, offset, mem, saved);
 191         }
 192
 193         mem2 = p_aligned_offset_realloc(mem, size2, alignment, offset);
 194
 195         ok(mem2 != NULL, "_aligned_offset_realloc(%p, %d, %d, %d) failed\n", mem, size2, alignment, offset);
 196
 197         if (mem2)
 198         {
 199             ok(((DWORD_PTR)((char *)mem + offset) & (alignment ? alignment - 1 : 0)) == 0,
 200                "_aligned_offset_realloc(%p, %d, %d, %d) not aligned: %p\n", mem, size2, alignment, offset, mem2);
 201             if (winetest_debug > 1)
 202             {
 203                 void *saved;
 204                 saved = *(void **)((DWORD_PTR)((char *)mem2 - sizeof(void *)) & ~(sizeof(void *) - 1));
 205                 trace("_aligned_offset_realloc(%p, %3d, %3d, %3d) returns %p, saved = %p\n",
 206                       mem, size2, alignment, offset, mem2, saved);
 207             }
 208             if (mem1)
 209             {
 210                 ok(memcmp(mem2, mem1, min(size1, size2))==0, "_aligned_offset_realloc(%p, %d, %d, %d) has different data\n", mem, size2, alignment, offset);
 211                 if (memcmp(mem2, mem1, min(size1, size2)) && winetest_debug > 1)
 212                 {
 213                     unsigned int i;
 214                     for (i = 0; i < min(size1, size2); i++)
 215                     {
 216                         if (((char *)mem2)[i] != ((char *)mem1)[i])
 217                             trace("%d: %02x != %02x\n", i, ((char *)mem2)[i] & 0xff, ((char *)mem1)[i] & 0xff);
 218                     }
 219                 }
 220             }
 221             p_aligned_free(mem2);
 222         } else {
 223             ok(errno == EINVAL, "_aligned_offset_realloc(%p, %d, %d, %d) errno: %d != %d\n", mem, size2, alignment, offset, errno, EINVAL);
 224             p_aligned_free(mem);
 225         }
 226
 227         free(mem1);
 228     }
 229     else
 230         ok(errno == EINVAL, "_aligned_offset_malloc(%d, %d) errno: %d != %d\n", size1, alignment, errno, EINVAL);
 231 }
 232
 233 static void test_aligned(void)
 234 {
 235     HMODULE msvcrt = GetModuleHandleA("msvcrt.dll");
 236
 237     if (msvcrt == NULL)
 238         return;
 239
 240     p_aligned_free = (void*)GetProcAddress(msvcrt, "_aligned_free");
 241     p_aligned_malloc = (void*)GetProcAddress(msvcrt, "_aligned_malloc");
 242     p_aligned_offset_malloc = (void*)GetProcAddress(msvcrt, "_aligned_offset_malloc");
 243     p_aligned_realloc = (void*)GetProcAddress(msvcrt, "_aligned_realloc");
 244     p_aligned_offset_realloc = (void*)GetProcAddress(msvcrt, "_aligned_offset_realloc");
 245
 246     if (!p_aligned_free || !p_aligned_malloc || !p_aligned_offset_malloc || !p_aligned_realloc || !p_aligned_offset_realloc)
 247     {
 248         skip("aligned memory tests skipped\n");
 249         return;
 250     }
 251
 252     test_aligned_malloc(256, 0);
 253     test_aligned_malloc(256, 1);
 254     test_aligned_malloc(256, 2);
 255     test_aligned_malloc(256, 3);
 256     test_aligned_malloc(256, 4);
 257     test_aligned_malloc(256, 8);
 258     test_aligned_malloc(256, 16);
 259     test_aligned_malloc(256, 32);
 260     test_aligned_malloc(256, 64);
 261     test_aligned_malloc(256, 127);
 262     test_aligned_malloc(256, 128);
 263
 264     test_aligned_offset_malloc(256, 0, 0);
 265     test_aligned_offset_malloc(256, 1, 0);
 266     test_aligned_offset_malloc(256, 2, 0);
 267     test_aligned_offset_malloc(256, 3, 0);
 268     test_aligned_offset_malloc(256, 4, 0);
 269     test_aligned_offset_malloc(256, 8, 0);
 270     test_aligned_offset_malloc(256, 16, 0);
 271     test_aligned_offset_malloc(256, 32, 0);
 272     test_aligned_offset_malloc(256, 64, 0);
 273     test_aligned_offset_malloc(256, 127, 0);
 274     test_aligned_offset_malloc(256, 128, 0);
 275
 276     test_aligned_offset_malloc(256, 0, 4);
 277     test_aligned_offset_malloc(256, 1, 4);
 278     test_aligned_offset_malloc(256, 2, 4);
 279     test_aligned_offset_malloc(256, 3, 4);
 280     test_aligned_offset_malloc(256, 4, 4);
 281     test_aligned_offset_malloc(256, 8, 4);
 282     test_aligned_offset_malloc(256, 16, 4);
 283     test_aligned_offset_malloc(256, 32, 4);
 284     test_aligned_offset_malloc(256, 64, 4);
 285     test_aligned_offset_malloc(256, 127, 4);
 286     test_aligned_offset_malloc(256, 128, 4);
 287
 288     test_aligned_offset_malloc(256, 8, 7);
 289     test_aligned_offset_malloc(256, 8, 9);
 290     test_aligned_offset_malloc(256, 8, 16);
 291     test_aligned_offset_malloc(256, 8, 17);
 292     test_aligned_offset_malloc(256, 8, 254);
 293     test_aligned_offset_malloc(256, 8, 255);
 294     test_aligned_offset_malloc(256, 8, 256);
 295     test_aligned_offset_malloc(256, 8, 512);
 296
 297     test_aligned_realloc(256, 512, 0);
 298     test_aligned_realloc(256, 128, 0);
 299     test_aligned_realloc(256, 512, 4);
 300     test_aligned_realloc(256, 128, 4);
 301     test_aligned_realloc(256, 512, 8);
 302     test_aligned_realloc(256, 128, 8);
 303     test_aligned_realloc(256, 512, 16);
 304     test_aligned_realloc(256, 128, 16);
 305     test_aligned_realloc(256, 512, 32);
 306     test_aligned_realloc(256, 128, 32);
 307     test_aligned_realloc(256, 512, 64);
 308     test_aligned_realloc(256, 128, 64);
 309
 310     test_aligned_offset_realloc(256, 512, 0, 0);
 311     test_aligned_offset_realloc(256, 128, 0, 0);
 312     test_aligned_offset_realloc(256, 512, 4, 0);
 313     test_aligned_offset_realloc(256, 128, 4, 0);
 314     test_aligned_offset_realloc(256, 512, 8, 0);
 315     test_aligned_offset_realloc(256, 128, 8, 0);
 316     test_aligned_offset_realloc(256, 512, 16, 0);
 317     test_aligned_offset_realloc(256, 128, 16, 0);
 318     test_aligned_offset_realloc(256, 512, 32, 0);
 319     test_aligned_offset_realloc(256, 128, 32, 0);
 320     test_aligned_offset_realloc(256, 512, 64, 0);
 321     test_aligned_offset_realloc(256, 128, 64, 0);
 322
 323     test_aligned_offset_realloc(256, 512, 0, 4);
 324     test_aligned_offset_realloc(256, 128, 0, 4);
 325     test_aligned_offset_realloc(256, 512, 4, 4);
 326     test_aligned_offset_realloc(256, 128, 4, 4);
 327     test_aligned_offset_realloc(256, 512, 8, 4);
 328     test_aligned_offset_realloc(256, 128, 8, 4);
 329     test_aligned_offset_realloc(256, 512, 16, 4);
 330     test_aligned_offset_realloc(256, 128, 16, 4);
 331     test_aligned_offset_realloc(256, 512, 32, 4);
 332     test_aligned_offset_realloc(256, 128, 32, 4);
 333     test_aligned_offset_realloc(256, 512, 64, 4);
 334     test_aligned_offset_realloc(256, 128, 64, 4);
 335
 336     test_aligned_offset_realloc(256, 512, 0, 8);
 337     test_aligned_offset_realloc(256, 128, 0, 8);
 338     test_aligned_offset_realloc(256, 512, 4, 8);
 339     test_aligned_offset_realloc(256, 128, 4, 8);
 340     test_aligned_offset_realloc(256, 512, 8, 8);
 341     test_aligned_offset_realloc(256, 128, 8, 8);
 342     test_aligned_offset_realloc(256, 512, 16, 8);
 343     test_aligned_offset_realloc(256, 128, 16, 8);
 344     test_aligned_offset_realloc(256, 512, 32, 8);
 345     test_aligned_offset_realloc(256, 128, 32, 8);
 346     test_aligned_offset_realloc(256, 512, 64, 8);
 347     test_aligned_offset_realloc(256, 128, 64, 8);
 348
 349     test_aligned_offset_realloc(256, 512, 0, 16);
 350     test_aligned_offset_realloc(256, 128, 0, 16);
 351     test_aligned_offset_realloc(256, 512, 4, 16);
 352     test_aligned_offset_realloc(256, 128, 4, 16);
 353     test_aligned_offset_realloc(256, 512, 8, 16);
 354     test_aligned_offset_realloc(256, 128, 8, 16);
 355     test_aligned_offset_realloc(256, 512, 16, 16);
 356     test_aligned_offset_realloc(256, 128, 16, 16);
 357     test_aligned_offset_realloc(256, 512, 32, 16);
 358     test_aligned_offset_realloc(256, 128, 32, 16);
 359     test_aligned_offset_realloc(256, 512, 64, 16);
 360     test_aligned_offset_realloc(256, 128, 64, 16);
 361
 362     test_aligned_offset_realloc(256, 512, 0, 32);
 363     test_aligned_offset_realloc(256, 128, 0, 32);
 364     test_aligned_offset_realloc(256, 512, 4, 32);
 365     test_aligned_offset_realloc(256, 128, 4, 32);
 366     test_aligned_offset_realloc(256, 512, 8, 32);
 367     test_aligned_offset_realloc(256, 128, 8, 32);
 368     test_aligned_offset_realloc(256, 512, 16, 32);
 369     test_aligned_offset_realloc(256, 128, 16, 32);
 370     test_aligned_offset_realloc(256, 512, 32, 32);
 371     test_aligned_offset_realloc(256, 128, 32, 32);
 372     test_aligned_offset_realloc(256, 512, 64, 32);
 373     test_aligned_offset_realloc(256, 128, 64, 32);
 374
 375     test_aligned_offset_realloc(256, 512, 0, 64);
 376     test_aligned_offset_realloc(256, 128, 0, 64);
 377     test_aligned_offset_realloc(256, 512, 4, 64);
 378     test_aligned_offset_realloc(256, 128, 4, 64);
 379     test_aligned_offset_realloc(256, 512, 8, 64);
 380     test_aligned_offset_realloc(256, 128, 8, 64);
 381     test_aligned_offset_realloc(256, 512, 16, 64);
 382     test_aligned_offset_realloc(256, 128, 16, 64);
 383     test_aligned_offset_realloc(256, 512, 32, 64);
 384     test_aligned_offset_realloc(256, 128, 32, 64);
 385     test_aligned_offset_realloc(256, 512, 64, 64);
 386     test_aligned_offset_realloc(256, 128, 64, 64);
 387
 388     test_aligned_offset_realloc(256, 512, 0, 96);
 389     test_aligned_offset_realloc(256, 128, 0, 96);
 390     test_aligned_offset_realloc(256, 512, 4, 96);
 391     test_aligned_offset_realloc(256, 128, 4, 96);
 392     test_aligned_offset_realloc(256, 512, 8, 96);
 393     test_aligned_offset_realloc(256, 128, 8, 96);
 394     test_aligned_offset_realloc(256, 512, 16, 96);
 395     test_aligned_offset_realloc(256, 128, 16, 96);
 396     test_aligned_offset_realloc(256, 512, 32, 96);
 397     test_aligned_offset_realloc(256, 128, 32, 96);
 398     test_aligned_offset_realloc(256, 512, 64, 96);
 399     test_aligned_offset_realloc(256, 128, 64, 96);
 400
 401     test_aligned_offset_realloc(256, 512, 0, 112);
 402     test_aligned_offset_realloc(256, 128, 0, 112);
 403     test_aligned_offset_realloc(256, 512, 4, 112);
 404     test_aligned_offset_realloc(256, 128, 4, 112);
 405     test_aligned_offset_realloc(256, 512, 8, 112);
 406     test_aligned_offset_realloc(256, 128, 8, 112);
 407     test_aligned_offset_realloc(256, 512, 16, 112);
 408     test_aligned_offset_realloc(256, 128, 16, 112);
 409     test_aligned_offset_realloc(256, 512, 32, 112);
 410     test_aligned_offset_realloc(256, 128, 32, 112);
 411     test_aligned_offset_realloc(256, 512, 64, 112);
 412     test_aligned_offset_realloc(256, 128, 64, 112);
 413 }
 414
 415 static void test_sbheap(void)
 416 {
 417     void *mem;
 418     int threshold;
 419
 420     if(sizeof(void*) == 8) {
 421         ok(!_set_sbh_threshold(0), "_set_sbh_threshold succeeded\n");
 422         ok(!_set_sbh_threshold(1000), "_set_sbh_threshold succeeded\n");
 423         return;
 424     }
 425
 426     mem = malloc(1);
 427     ok(mem != NULL, "malloc failed\n");
 428
 429     ok(_set_sbh_threshold(1), "_set_sbh_threshold failed\n");
 430     threshold = _get_sbh_threshold();
 431     ok(threshold == 16, "threshold = %d\n", threshold);
 432
 433     ok(_set_sbh_threshold(8), "_set_sbh_threshold failed\n");
 434     threshold = _get_sbh_threshold();
 435     ok(threshold == 16, "threshold = %d\n", threshold);
 436
 437     ok(_set_sbh_threshold(1000), "_set_sbh_threshold failed\n");
 438     threshold = _get_sbh_threshold();
 439     ok(threshold == 1008, "threshold = %d\n", threshold);
 440
 441     free(mem);
 442
 443     mem = malloc(1);
 444     ok(mem != NULL, "malloc failed\n");
 445     ok(!((UINT_PTR)mem & 0xf), "incorrect alignment (%p)\n", mem);
 446
 447     mem = realloc(mem, 10);
 448     ok(mem != NULL, "realloc failed\n");
 449     ok(!((UINT_PTR)mem & 0xf), "incorrect alignment (%p)\n", mem);
 450
 451     ok(_set_sbh_threshold(0), "_set_sbh_threshold failed\n");
 452     threshold = _get_sbh_threshold();
 453     ok(threshold == 0, "threshold = %d\n", threshold);
 454
 455     free(mem);
 456 }
 457
 458 static void test_calloc(void)
 459 {
 460     void *ptr;
 461
 462     ptr = calloc(1, 0);
 463     ok(ptr != NULL, "got %p\n", ptr);
 464     free(ptr);
 465
 466     ptr = calloc(0, 0);
 467     ok(ptr != NULL, "got %p\n", ptr);
 468     free(ptr);
 469
 470     ptr = calloc(0, 1);
 471     ok(ptr != NULL, "got %p\n", ptr);
 472     free(ptr);
 473
 474     errno = 0;
 475     ptr = calloc(~(size_t)0 / 2, ~(size_t)0 / 2);
 476     ok(ptr == NULL || broken(ptr != NULL) /* winxp sp0 */, "got %p\n", ptr);
 477     ok(errno == ENOMEM || broken(errno == 0) /* winxp, win2k3 */, "got errno %d\n", errno);
 478     free(ptr);
 479 }
 480
 481 START_TEST(heap)
 482 {
 483     void *mem;
 484
 485     mem = malloc(0);
 486     ok(mem != NULL, "memory not allocated for size 0\n");
 487     free(mem);
 488
 489     mem = realloc(NULL, 10);
 490     ok(mem != NULL, "memory not allocated\n");
 491
 492     mem = realloc(mem, 20);
 493     ok(mem != NULL, "memory not reallocated\n");
 494
 495     mem = realloc(mem, 0);
 496     ok(mem == NULL, "memory not freed\n");
 497
 498     mem = realloc(NULL, 0);
 499     ok(mem != NULL, "memory not (re)allocated for size 0\n");
 500
 501     free(mem);
 502
 503     test_aligned();
 504     test_sbheap();
 505     test_calloc();
 506 }