1
2/* @(#)s_ldexp.c 1.3 95/01/18 */
3/*
4 * ====================================================
5 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 *
7 * Developed at SunSoft, 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 "fdlibm.h"
15#include <errno.h>
16
17#ifdef __STDC__
18	double ieee_ldexp(double value, int exp)
19#else
20	double ieee_ldexp(value, exp)
21	double value; int exp;
22#endif
23{
24	if(!ieee_finite(value)||value==0.0) return value;
25	value = ieee_scalbn(value,exp);
26	if(!ieee_finite(value)||value==0.0) errno = ERANGE;
27	return value;
28}
29