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
50
|
/* w_expl.c -- long double version of w_exp.c.
* Conversion to long double by Ulrich Drepper,
* Cygnus Support, drepper@cygnus.com.
*/
/*
* ====================================================
* 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
/*
* wrapper expl(x)
*/
#include <math.h>
#include <math_private.h>
static const long double
o_threshold= 1.1356523406294143949491931077970763428449E4L,
u_threshold= -1.1433462743336297878837243843452621503410E4;
long double __expl(long double x) /* wrapper exp */
{
#ifdef _IEEE_LIBM
return __ieee754_expl(x);
#else
long double z;
z = __ieee754_expl(x);
if(_LIB_VERSION == _IEEE_) return z;
if(__finitel(x)) {
if(x>o_threshold)
return __kernel_standard(x,x,206); /* exp overflow */
else if(x<u_threshold)
return __kernel_standard(x,x,207); /* exp underflow */
}
return z;
#endif
}
hidden_def (__expl)
weak_alias (__expl, expl)
|
