diff options
Diffstat (limited to 'winsup/mingw/mingwex/math/fpclassify.c')
-rw-r--r-- | winsup/mingw/mingwex/math/fpclassify.c | 20 |
1 files changed, 0 insertions, 20 deletions
diff --git a/winsup/mingw/mingwex/math/fpclassify.c b/winsup/mingw/mingwex/math/fpclassify.c deleted file mode 100644 index f8cd8cb44..000000000 --- a/winsup/mingw/mingwex/math/fpclassify.c +++ /dev/null @@ -1,20 +0,0 @@ -#include <math.h> - -/* 'fxam' sets FPU flags C3,C2,C0 'fstsw' stores: - FP_NAN 001 0x0100 - FP_NORMAL 010 0x0400 - FP_INFINITE 011 0x0500 - FP_ZERO 100 0x4000 - FP_SUBNORMAL 110 0x4400 - -and sets C1 flag (signbit) if neg */ - -int __fpclassify (double _x){ - unsigned short sw; - __asm__ ( - "fxam; fstsw %%ax;" - : "=a" (sw) - : "t" (_x) - ); - return sw & (FP_NAN | FP_NORMAL | FP_ZERO ); -} |