kc3-lang/gnulib/tests/test-aligned-malloc.c

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• Hash : ef8651fe
  Author :
  Date : 2025-04-12T15:03:41
  

  aligned-malloc tests: Simplify a macro definition and improve comment.
  
  Suggested by Bruno Haible.
  
  * tests/test-aligned-malloc.c (ALIGNMENT): Undefine without checking.
  Mention that the #undef is for AIX which defines it beforehand in
  <sys/socket.h>.
  

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• tests/test-aligned-malloc.c

• /* Test of allocating memory with given alignment.
  
     Copyright (C) 2020-2025 Free Software Foundation, Inc.
  
     This program is free software: you can redistribute it and/or modify
     it under the terms of the GNU General Public License as published by
     the Free Software Foundation, either version 3 of the License, or
     (at your option) any later version.
  
     This program is distributed in the hope that it will be useful,
     but WITHOUT ANY WARRANTY; without even the implied warranty of
     MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
     GNU General Public License for more details.
  
     You should have received a copy of the GNU General Public License
     along with this program.  If not, see <https://www.gnu.org/licenses/>.  */
  
  /* Written by Bruno Haible <bruno@clisp.org>, 2020.  */
  
  #include <config.h>
  
  #include <stdint.h>
  #include <stdlib.h>
  
  /* AIX defines a macro ALIGNMENT in <sys/socket.h>.  Undefine it.  */
  #undef ALIGNMENT
  #define ALIGNMENT 4
  #define aligned_malloc aligned4_malloc
  #define aligned_free aligned4_free
  #include "aligned-malloc.h"
  #undef aligned_free
  #undef aligned_malloc
  #undef ALIGNMENT
  void *(*volatile my_aligned4_malloc) (size_t) = aligned4_malloc;
  #define aligned4_malloc my_aligned4_malloc
  void (*volatile my_aligned4_free) (void *) = aligned4_free;
  #define aligned4_free my_aligned4_free
  
  #define ALIGNMENT 8
  #define aligned_malloc aligned8_malloc
  #define aligned_free aligned8_free
  #include "aligned-malloc.h"
  #undef aligned_free
  #undef aligned_malloc
  #undef ALIGNMENT
  void *(*volatile my_aligned8_malloc) (size_t) = aligned8_malloc;
  #define aligned8_malloc my_aligned8_malloc
  void (*volatile my_aligned8_free) (void *) = aligned8_free;
  #define aligned8_free my_aligned8_free
  
  #define ALIGNMENT 16
  #define aligned_malloc aligned16_malloc
  #define aligned_free aligned16_free
  #include "aligned-malloc.h"
  #undef aligned_free
  #undef aligned_malloc
  #undef ALIGNMENT
  void *(*volatile my_aligned16_malloc) (size_t) = aligned16_malloc;
  #define aligned16_malloc my_aligned16_malloc
  void (*volatile my_aligned16_free) (void *) = aligned16_free;
  #define aligned16_free my_aligned16_free
  
  #define ALIGNMENT 32
  #define aligned_malloc aligned32_malloc
  #define aligned_free aligned32_free
  #include "aligned-malloc.h"
  #undef aligned_free
  #undef aligned_malloc
  #undef ALIGNMENT
  void *(*volatile my_aligned32_malloc) (size_t) = aligned32_malloc;
  #define aligned32_malloc my_aligned32_malloc
  void (*volatile my_aligned32_free) (void *) = aligned32_free;
  #define aligned32_free my_aligned32_free
  
  #include <string.h>
  
  #include "macros.h"
  
  int
  main (int argc, char *argv[])
  {
    static size_t sizes[] =
      { 13, 8, 17, 450, 320, 1, 99, 4, 15, 16, 2, 76, 37, 127, 2406, 641 };
    void *aligned4_blocks[SIZEOF (sizes)];
    void *aligned8_blocks[SIZEOF (sizes)];
    void *aligned16_blocks[SIZEOF (sizes)];
    void *aligned32_blocks[SIZEOF (sizes)];
    size_t i;
  
    for (i = 0; i < SIZEOF (sizes); i++)
      {
        size_t size = sizes[i];
  
        aligned4_blocks[i] = aligned4_malloc (size);
        ASSERT (((uintptr_t) aligned4_blocks[i] % 4) == 0);
        memset (aligned4_blocks[i], 'w', size);
  
        aligned8_blocks[i] = aligned8_malloc (size);
        ASSERT (((uintptr_t) aligned8_blocks[i] % 8) == 0);
        memset (aligned8_blocks[i], 'x', size);
  
        aligned16_blocks[i] = aligned16_malloc (size);
        ASSERT (((uintptr_t) aligned16_blocks[i] % 16) == 0);
        memset (aligned16_blocks[i], 'y', size);
  
        aligned32_blocks[i] = aligned32_malloc (size);
        ASSERT (((uintptr_t) aligned32_blocks[i] % 32) == 0);
        memset (aligned32_blocks[i], 'z', size);
      }
  
    for (i = 0; i < SIZEOF (sizes); i++)
      {
        aligned4_free (aligned4_blocks[i]);
        aligned8_free (aligned8_blocks[i]);
        aligned16_free (aligned16_blocks[i]);
        aligned32_free (aligned32_blocks[i]);
      }
  
    return test_exit_status;
  }
  

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