1/* s_copysignl.c -- long double version of s_copysign.c.
2 * Conversion to long double by Jakub Jelinek, jj@ultra.linux.cz.
3 */
4
5/*
6 * ====================================================
7 * Copyright (C) 1993 by Sun Microsystems, Inc. All rights reserved.
8 *
9 * Developed at SunPro, a Sun Microsystems, Inc. business.
10 * Permission to use, copy, modify, and distribute this
11 * software is freely granted, provided that this notice
12 * is preserved.
13 * ====================================================
14 */
15
16#if defined (LIBM_SCCS) && ! defined (lint)
17static char rcsid[] = "$NetBSD: $";
18#endif
19
20/*
21 * copysignl(long double x, long double y)
22 * copysignl(x,y) returns a value with the magnitude of x and
23 * with the sign bit of y.
24 */
25
26#define NO_MATH_REDIRECT
27#include <math.h>
28#include <math_private.h>
29#include <libm-alias-ldouble.h>
30#include <math-use-builtins.h>
31
32_Float128
33__copysignl (_Float128 x, _Float128 y)
34{
35#if USE_COPYSIGNL_BUILTIN
36 return __builtin_copysignl (x, y);
37#else
38 /* Use generic implementation. */
39 uint64_t hx, hy;
40 GET_LDOUBLE_MSW64 (hx, x);
41 GET_LDOUBLE_MSW64 (hy, y);
42 SET_LDOUBLE_MSW64 (x, (hx & 0x7fffffffffffffffULL)
43 | (hy & 0x8000000000000000ULL));
44 return x;
45#endif /* ! USE_COPYSIGNL_BUILTIN */
46}
47libm_alias_ldouble (__copysign, copysign)
48