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39 lines
1.0 KiB
C
39 lines
1.0 KiB
C
/* s_copysignl.c -- long double version of s_copysign.c.
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* Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
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*/
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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: $";
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#endif
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/*
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* copysignl(long double x, long double y)
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* copysignl(x,y) returns a value with the magnitude of x and
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* with the sign bit of y.
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*/
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#include <math.h>
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#include <math_private.h>
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long double __copysignl(long double x, long double y)
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{
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u_int64_t hx,hy;
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GET_LDOUBLE_MSW64(hx,x);
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GET_LDOUBLE_MSW64(hy,y);
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SET_LDOUBLE_MSW64(x,(hx&0x7fffffffffffffffULL)
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|(hy&0x8000000000000000ULL));
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return x;
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}
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weak_alias (__copysignl, copysignl)
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