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33 lines
917 B
C
33 lines
917 B
C
/* @(#)s_ldexp.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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#if defined(LIBM_SCCS) && !defined(lint)
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static char rcsid[] = "$NetBSD: s_ldexp.c,v 1.6 1995/05/10 20:47:40 jtc Exp $";
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#endif
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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 __ldexp(double value, int exp)
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{
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if(!isfinite(value)||value==0.0) return value;
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value = __scalbn(value,exp);
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if(!isfinite(value)||value==0.0) __set_errno (ERANGE);
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return value;
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}
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weak_alias (__ldexp, ldexp)
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#ifdef NO_LONG_DOUBLE
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strong_alias (__ldexp, __ldexpl)
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weak_alias (__ldexp, ldexpl)
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#endif
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