1typedef __SIZE_TYPE__ size_t; 2extern void dont_optimize_away(size_t); 3 4void crashGcc(char*a) 5{ 6 size_t b=(size_t)a - ((size_t)a & 1); 7 size_t c=(size_t)a - (b & (size_t)a); 8 dont_optimize_away(b+c); 9} 10 11