31 lines
826 B
C
31 lines
826 B
C
/* @(#)s_ldexp0.c 5.1 93/09/24 */
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/*
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* ====================================================
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* Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
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*
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* Developed at SunPro, a Sun Microsystems, Inc. business.
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* Permission to use, copy, modify, and distribute this
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* software is freely granted, provided that this notice
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* is preserved.
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* ====================================================
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*/
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#include <sys/cdefs.h>
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#if defined(LIBM_SCCS) && !defined(lint)
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__RCSID("$NetBSD: s_ldexp.c,v 1.11 2010/04/23 19:17:07 drochner Exp $");
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#endif
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#include "namespace.h"
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#include "math.h"
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#include "math_private.h"
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#include <errno.h>
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double
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ldexp(double value, int exp0)
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{
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if(!finite(value)||value==0.0) return value;
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value = scalbn(value,exp0);
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if(!finite(value)||value==0.0) errno = ERANGE;
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return value;
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}
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