glibc/sysdeps/ieee754/dbl-64/s_isinf_ns.c
Richard Henderson 1ed0291c31 Use <> for math.h and math_private.h everywhere.
Entire tree edited via find | grep | sed.
2012-03-09 16:09:10 -08:00

21 lines
320 B
C

/*
* Written by Ulrich Drepper <drepper@gmail.com>.
*/
/*
* __isinf_ns(x) returns != 0 if x is ±inf, else 0;
* no branching!
*/
#include <math.h>
#include <math_private.h>
#undef __isinf_ns
int
__isinf_ns (double x)
{
int32_t hx,lx;
EXTRACT_WORDS(hx,lx,x);
return !(lx | ((hx & 0x7fffffff) ^ 0x7ff00000));
}