/* Copyright (C) 2002 Free Software Foundation. Ensure that builtin memset operations for constant length and non-constant assigned value don't cause compiler problems. Written by Roger Sayle, 21 April 2002. */ extern void abort (void); typedef __SIZE_TYPE__ size_t; extern void *memset (void *, int, size_t); char buffer[32]; int main (int argc) { memset (buffer, argc, 0); memset (buffer, argc, 1); memset (buffer, argc, 2); memset (buffer, argc, 3); memset (buffer, argc, 4); memset (buffer, argc, 5); memset (buffer, argc, 6); memset (buffer, argc, 7); memset (buffer, argc, 8); memset (buffer, argc, 9); memset (buffer, argc, 10); memset (buffer, argc, 11); memset (buffer, argc, 12); memset (buffer, argc, 13); memset (buffer, argc, 14); memset (buffer, argc, 15); memset (buffer, argc, 16); memset (buffer, argc, 17); return 0; } #ifdef __OPTIMIZE__ /* When optimizing, most of the above cases should be transformed into something else. So any remaining calls to the original function for short lengths should abort. */ static void * memset (void *dst, int c, size_t len) { if (len < 2) abort (); } #endif