34 lines
577 B
C
34 lines
577 B
C
/*
|
|
* Written by J.T. Conklin <jtc@netbsd.org>.
|
|
* Change for long double by Ulrich Drepper <drepper@cygnus.com>.
|
|
* Public domain.
|
|
*/
|
|
|
|
#if defined(LIBM_SCCS) && !defined(lint)
|
|
static char rcsid[] = "$NetBSD: $";
|
|
#endif
|
|
|
|
/*
|
|
* isinfl(x) returns 1 is x is inf, else 0;
|
|
* no branching!
|
|
*/
|
|
|
|
#include "math.h"
|
|
#include "math_private.h"
|
|
|
|
#ifdef __STDC__
|
|
int __isinfl(long double x)
|
|
#else
|
|
int __isinfl(x)
|
|
long double x;
|
|
#endif
|
|
{
|
|
int32_t se,hx,lx;
|
|
GET_LDOUBLE_WORDS(se,hx,lx,x);
|
|
se &= 0x7fff;
|
|
se ^= 0x7fff;
|
|
se |= hx | lx;
|
|
return (se == 0);
|
|
}
|
|
weak_alias (__isinfl, isinfl)
|