blob: d2f9907790911ab7422d37de73fae7ffe2fb8d16 (
plain)
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
|
/* @(#)s_ldexp.c 5.1 93/09/24 */
/*
* ====================================================
* 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: s_ldexp.c,v 1.6 1995/05/10 20:47:40 jtc Exp $";
#endif
#include <math.h>
#include <math_private.h>
#include <errno.h>
double __ldexp(double value, int exp)
{
if(!isfinite(value)||value==0.0) return value;
value = __scalbn(value,exp);
if(!isfinite(value)||value==0.0) __set_errno (ERANGE);
return value;
}
weak_alias (__ldexp, ldexp)
#ifdef NO_LONG_DOUBLE
strong_alias (__ldexp, __ldexpl)
weak_alias (__ldexp, ldexpl)
#endif
|
