1/* s_finitel.c -- long double version of s_finite.c.
2 */
3
4/*
5 * ====================================================
6 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
7 *
8 * Developed at SunPro, a Sun Microsystems, Inc. business.
9 * Permission to use, copy, modify, and distribute this
10 * software is freely granted, provided that this notice
11 * is preserved.
12 * ====================================================
13 */
14
15#if defined(LIBM_SCCS) && !defined(lint)
16static char rcsid[] = "$NetBSD: $";
17#endif
18
19/*
20 * finitel(x) returns 1 is x is finite, else 0;
21 * no branching!
22 */
23
24#include <math.h>
25#include <math_private.h>
26
27int __finitel(_Float128 x)
28{
29 int64_t hx;
30 GET_LDOUBLE_MSW64(hx,x);
31 return (int)((uint64_t)((hx&0x7fff000000000000LL)
32 -0x7fff000000000000LL)>>63);
33}
34mathx_hidden_def (__finitel)
35weak_alias (__finitel, finitel)
36

source code of glibc/sysdeps/ieee754/ldbl-128/s_finitel.c