gcc/testsuite/gcc.c-torture/execute/builtins/lib/memmove.c

   1 extern void abort (void);
   2 extern int inside_main;
   3
   4 void *
   5 memmove (void *dst, const void *src, __SIZE_TYPE__ n)
   6 {
   7   char *dstp;
   8   const char *srcp;
   9
  10 #ifdef __OPTIMIZE__
  11   if (inside_main)
  12     abort ();
  13 #endif
  14
  15   srcp = src;
  16   dstp = dst;
  17   if (srcp < dstp)
  18     while (n-- != 0)
  19       dstp[n] = srcp[n];
  20   else
  21     while (n-- != 0)
  22       *dstp++ = *srcp++;
  23
  24   return dst;
  25 }
  26
  27 void
  28 bcopy (const void *src, void *dst, __SIZE_TYPE__ n)
  29 {
  30   memmove (dst, src, n);
  31 }