| 1 | /* |
| 2 | * Perform some basic arithmetic with long double, as a sanity check. |
| 3 | * With small integral numbers, we can cross-check with integers. |
| 4 | */ |
| 5 | |
| 6 | #include <assert.h> |
| 7 | |
| 8 | int main() |
| 9 | { |
| 10 | int i, j; |
| 11 | |
| 12 | for (i = 1; i < 5; i++) { |
| 13 | for (j = 1; j < 5; j++) { |
| 14 | long double la = (long double)i + j; |
| 15 | long double lm = (long double)i * j; |
| 16 | long double ls = (long double)i - j; |
| 17 | |
| 18 | assert(la == i + j); |
| 19 | assert(lm == i * j); |
| 20 | assert(ls == i - j); |
| 21 | } |
| 22 | } |
| 23 | return 0; |
| 24 | } |