extern int printf(const char *, ...); static void func_ull_ull(unsigned long long l1,unsigned long long l2){ } int main() { int a,b,c,d; a=1;b=2;c=3;d=4; func_ull_ull((unsigned long long)a/1.0,(unsigned long long)b/1.0); printf("%d %d %d %d",a,b,c,d); return 0; }