/* Copyright (C) 2001 Free Software Foundation. Ensure builtin memset and memcpy are optimized away correctly. Written by Roger Sayle, 11/23/2001. */ extern void abort (void); typedef __SIZE_TYPE__ size_t; extern void *memset (void *s, int c, size_t n); extern void *memcpy (void *dest, const void *src, size_t n); char dst[32]; char src[32]; int main () { memset (src, 0, 0); memcpy (dst, src, 0); return 0; } #ifdef __OPTIMIZE__ /* When optimizing, all the above cases should be transformed into something else. So any remaining calls to the original function should abort. */ static void * memset (void *s, int c, size_t n) { abort (); } static void * memcpy (void *dest, const void *src, size_t n) { abort (); } #endif