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

   1 extern void abort (void);
   2 extern int inside_main;
   3
   4 __attribute__ ((__noinline__))
   5 void *
   6 mempcpy (void *dst, const void *src, __SIZE_TYPE__ n)
   7 {
   8   const char *srcp;
   9   char *dstp;
  10
  11 #ifdef __OPTIMIZE__
  12   if (inside_main)
  13     abort ();
  14 #endif
  15
  16   srcp = src;
  17   dstp = dst;
  18   while (n-- != 0)
  19     *dstp++ = *srcp++;
  20
  21   return dstp;
  22 }