| 1 | /* s_copysignl.c -- long double version of s_copysign.c. |
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| 2 | */ |
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| 3 | |
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| 4 | /* |
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| 5 | * ==================================================== |
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| 6 | * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved. |
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| 7 | * |
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| 8 | * Developed at SunPro, a Sun Microsystems, Inc. business. |
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| 9 | * Permission to use, copy, modify, and distribute this |
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| 10 | * software is freely granted, provided that this notice |
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| 11 | * is preserved. |
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| 12 | * ==================================================== |
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| 13 | */ |
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| 14 | |
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| 15 | #if defined(LIBM_SCCS) && !defined(lint) |
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| 16 | static char rcsid[] = "$NetBSD: $" ; |
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| 17 | #endif |
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| 18 | |
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| 19 | /* |
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| 20 | * copysignl(long double x, long double y) |
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| 21 | * copysignl(x,y) returns a value with the magnitude of x and |
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| 22 | * with the sign bit of y. |
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| 23 | */ |
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| 24 | |
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| 25 | #define NO_MATH_REDIRECT |
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| 26 | #include <math.h> |
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| 27 | #include <math_private.h> |
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| 28 | #include <libm-alias-ldouble.h> |
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| 29 | |
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| 30 | long double __copysignl(long double x, long double y) |
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| 31 | { |
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| 32 | uint32_t es1,es2; |
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| 33 | GET_LDOUBLE_EXP(es1,x); |
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| 34 | GET_LDOUBLE_EXP(es2,y); |
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| 35 | SET_LDOUBLE_EXP(x,(es1&0x7fff)|(es2&0x8000)); |
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| 36 | return x; |
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| 37 | } |
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| 38 | libm_alias_ldouble (__copysign, copysign) |
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| 39 | |
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