29 lines
712 B
C
29 lines
712 B
C
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/* @(#)s_ldexp.c 1.3 95/01/18 */
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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 SunSoft, 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 "math.h"
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#include <errno.h>
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#ifdef __STDC__
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double ldexp(double value, int exp)
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#else
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double ldexp(value, exp)
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double value; int exp;
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#endif
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{
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if(!finite(value)||value==0.0) return value;
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value = scalbn(value,exp);
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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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