1 /* @(#)s_ldexp0.c 5.1 93/09/24 */
3 * ====================================================
4 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
6 * Developed at SunPro, a Sun Microsystems, Inc. business.
7 * Permission to use, copy, modify, and distribute this
8 * software is freely granted, provided that this notice
10 * ====================================================
13 #include <sys/cdefs.h>
14 #if defined(LIBM_SCCS) && !defined(lint)
15 __RCSID("$NetBSD: s_ldexp.c,v 1.11 2010/04/23 19:17:07 drochner Exp $");
18 #include "namespace.h"
20 #include "math_private.h"
24 ldexp(double value
, int exp0
)
26 if(!finite(value
)||value
==0.0) return value
;
27 value
= scalbn(value
,exp0
);
28 if(!finite(value
)||value
==0.0) errno
= ERANGE
;