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
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
|
/* w_scalbl.c -- long double version of w_scalb.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 scalbl(long double x, long double fn) is provide for
* passing various standard test suite. One
* should use scalbnl() instead.
*/
#include <math.h>
#include "math_private.h"
#include <errno.h>
#ifdef __STDC__
#ifdef _SCALB_INT
long double __scalbl(long double x, int fn) /* wrapper scalbl */
#else
long double __scalbl(long double x, long double fn)/* wrapper scalbl */
#endif
#else
long double __scalbl(x,fn) /* wrapper scalbl */
#ifdef _SCALB_INT
long double x; int fn;
#else
long double x,fn;
#endif
#endif
{
#ifdef _IEEE_LIBM
return __ieee754_scalbl(x,fn);
#else
long double z;
z = __ieee754_scalbl(x,fn);
if(_LIB_VERSION != _SVID_) return z;
if(!(__finitel(z)||__isnanl(z))&&__finitel(x)) {
return __kernel_standard(x,(double)fn,232); /* scalb overflow */
}
if(z==0.0&&z!=x) {
return __kernel_standard(x,(double)fn,233); /* scalb underflow */
}
#ifndef _SCALB_INT
if(!__finitel(fn)) __set_errno (ERANGE);
#endif
return z;
#endif
}
weak_alias (__scalbl, scalbl)
|
