1  #include <stddef.h>
       2  #ifdef DEBUG
       3  #include <stdio.h>
       4  #endif
       5  
       6  #ifdef  __cplusplus
       7  extern "C" void abort (void);
       8  #else
       9  extern void abort (void);
      10  #endif
      11  
      12  int
      13  check_int (int *i, int align)
      14  {
      15    *i = 20;
      16    if ((((ptrdiff_t) i) & (align - 1)) != 0)
      17      {
      18  #ifdef DEBUG
      19        printf ("\nUnalign address (%d): %p!\n", align, i);
      20  #endif
      21        abort ();
      22      }
      23    return *i;
      24  }
      25  
      26  void
      27  check (void *p, int align)
      28  {
      29    if ((((ptrdiff_t) p) & (align - 1)) != 0)
      30      {
      31  #ifdef DEBUG
      32        printf ("\nUnalign address (%d): %p!\n", align, p);
      33  #endif
      34        abort ();
      35      }
      36  }