1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/* 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>
#include <math_ldbl_opt.h>
int
___finitel (long double x)
{
uint64_t hx;
double xhi;
xhi = ldbl_high (x);
EXTRACT_WORDS64 (hx, xhi);
hx &= 0x7fffffffffffffffLL;
hx -= 0x7ff0000000000000LL;
return hx >> 63;
}
hidden_ver (___finitel, __finitel)
weak_alias (___finitel, ____finitel)
#ifdef IS_IN_libm
long_double_symbol (libm, ____finitel, finitel);
long_double_symbol (libm, ___finitel, __finitel);
#else
long_double_symbol (libc, ____finitel, finitel);
long_double_symbol (libc, ___finitel, __finitel);
#endif
|
