| /contrib/sdk/sources/libc/math/sf_isinff.c |
|---|
| 0,0 → 1,27 |
| /* |
| * __isinff(x) returns 1 if x is +-infinity, else 0; |
| * Added by Cygnus Support. |
| */ |
| #include "fdlibm.h" |
| int |
| _DEFUN (__isinff, (x), |
| float x) |
| { |
| __int32_t ix; |
| GET_FLOAT_WORD(ix,x); |
| ix &= 0x7fffffff; |
| return FLT_UWORD_IS_INFINITE(ix); |
| } |
| #ifdef _DOUBLE_IS_32BITS |
| int |
| _DEFUN (__isinfd, (x), |
| double x) |
| { |
| return __isinff((float) x); |
| } |
| #endif /* defined(_DOUBLE_IS_32BITS) */ |