source: trunk/sys/libm/s_ldexp.c @ 1

Last change on this file since 1 was 1, checked in by alain, 5 years ago

First import

File size: 718 bytes
Line 
1
2/* @(#)s_ldexp.c 5.1 93/09/24 */
3/*
4 * ====================================================
5 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 *
7 * Developed at SunPro, a Sun Microsystems, Inc. business.
8 * Permission to use, copy, modify, and distribute this
9 * software is freely granted, provided that this notice
10 * is preserved.
11 * ====================================================
12 */
13
14#include <libm/fdlibm.h>
15#include <errno.h>
16
17#ifdef __STDC__
18        double ldexp(double value, int exp)
19#else
20        double ldexp(value, exp)
21        double value; int exp;
22#endif
23{
24        if(!finite(value)||value==0.0) return value;
25        value = scalbn(value,exp);
26        if(!finite(value)||value==0.0) errno = ERANGE;
27        return value;
28}
Note: See TracBrowser for help on using the repository browser.