| #include <math.h> | |
| #include <float.h> | |
| #if LDBL_MANT_DIG == 53 && LDBL_MAX_EXP == 1024 | |
| long double fdiml(long double x, long double y) { | |
| return fdim(x, y); | |
| } | |
| #else | |
| long double fdiml(long double x, long double y) { | |
| if (isnan(x)) | |
| return x; | |
| if (isnan(y)) | |
| return y; | |
| return x > y ? x - y : 0; | |
| } | |
| #endif |