mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-23 05:20:06 +00:00
37 lines
931 B
C
37 lines
931 B
C
/* s_finitel.c -- long double version of s_finite.c.
|
|
* Conversion to IEEE quad long double by Jakub Jelinek, jj@ultra.linux.cz.
|
|
*/
|
|
|
|
/*
|
|
* ====================================================
|
|
* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
|
|
*
|
|
* Developed at SunPro, a Sun Microsystems, Inc. business.
|
|
* Permission to use, copy, modify, and distribute this
|
|
* software is freely granted, provided that this notice
|
|
* is preserved.
|
|
* ====================================================
|
|
*/
|
|
|
|
#if defined(LIBM_SCCS) && !defined(lint)
|
|
static char rcsid[] = "$NetBSD: $";
|
|
#endif
|
|
|
|
/*
|
|
* finitel(x) returns 1 is x is finite, else 0;
|
|
* no branching!
|
|
*/
|
|
|
|
#include <math.h>
|
|
#include <math_private.h>
|
|
|
|
int __finitel(long double x)
|
|
{
|
|
int64_t hx;
|
|
GET_LDOUBLE_MSW64(hx,x);
|
|
return (int)((u_int64_t)((hx&0x7fffffffffffffffLL)
|
|
-0x7fff000000000000LL)>>63);
|
|
}
|
|
hidden_def (__finitel)
|
|
weak_alias (__finitel, finitel)
|