| /** | |
| * This file has no copyright assigned and is placed in the Public Domain. | |
| * This file is part of the mingw-w64 runtime package. | |
| * No warranty is given; refer to the file DISCLAIMER.PD within this package. | |
| */ | |
| #include <math.h> | |
| #include <limits.h> | |
| int ilogb(double x) | |
| { | |
| if (x == 0.0) | |
| return FP_ILOGB0; | |
| if (isinf(x)) | |
| return INT_MAX; | |
| if (isnan(x)) | |
| return FP_ILOGBNAN; | |
| return (int) logb(x); | |
| } |