Retro68/gcc/newlib/libm/common/sf_isinff.c
2012-03-27 01:51:53 +02:00

28 lines
382 B
C

/*
* __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) */