1 #include <limits.h> 2 3 #if ULONG_LONG_MAX != 18446744073709551615ull && ULONG_MAX != 18446744073709551615ull main(void)4int main(void) { exit (0); } 5 #else 6 #if ULONG_MAX != 18446744073709551615ull 7 typedef unsigned long long ull; 8 #else 9 typedef unsigned long ull; 10 #endif 11 12 #include <stdio.h> 13 14 void checkit(int); 15 main()16main () { 17 const ull a = 0x1400000000ULL; 18 const ull b = 0x80000000ULL; 19 const ull c = a/b; 20 const ull d = 0x1400000000ULL / 0x80000000ULL; 21 22 checkit ((int) c); 23 checkit ((int) d); 24 25 exit(0); 26 } 27 checkit(int a)28void checkit (int a) 29 { 30 if (a != 40) 31 abort(); 32 } 33 #endif 34