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35 lines
781 B
C
35 lines
781 B
C
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/* @(#)s_signif.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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/*
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* significand(x) computes just
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* scalb(x, (double) -ilogb(x)),
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* for exercising the fraction-part(F) IEEE 754-1985 test vector.
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*/
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#include "fdlibm.h"
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#ifndef _DOUBLE_IS_32BITS
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#ifdef __STDC__
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double significand(double x)
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#else
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double significand(x)
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double x;
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#endif
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{
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return __ieee754_scalb(x,(double) -ilogb(x));
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}
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#endif /* _DOUBLE_IS_32BITS */
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