1/* Define aliases for libm long double functions.
2 Copyright (C) 2017-2021 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
4
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
9
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
14
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <https://www.gnu.org/licenses/>. */
18
19#ifndef _LIBM_ALIAS_LDOUBLE_H
20#define _LIBM_ALIAS_LDOUBLE_H
21
22#include <bits/floatn.h>
23
24#if __HAVE_FLOAT128 && !__HAVE_DISTINCT_FLOAT128
25# define libm_alias_ldouble_other_r_f128(from, to, r) \
26 weak_alias (from ## l ## r, to ## f128 ## r)
27#else
28# define libm_alias_ldouble_other_r_f128(from, to, r)
29#endif
30
31#if __HAVE_FLOAT64X_LONG_DOUBLE
32# define libm_alias_ldouble_other_r_f64x(from, to, r) \
33 weak_alias (from ## l ## r, to ## f64x ## r)
34#else
35# define libm_alias_ldouble_other_r_f64x(from, to, r)
36#endif
37
38/* Define _FloatN / _FloatNx aliases for a long double libm function
39 that has internal name FROM ## l ## R and public names TO ## suffix
40 ## R for each suffix of a supported _FloatN / _FloatNx
41 floating-point type with the same format as long double. */
42#define libm_alias_ldouble_other_r(from, to, r) \
43 libm_alias_ldouble_other_r_f128 (from, to, r); \
44 libm_alias_ldouble_other_r_f64x (from, to, r)
45
46/* Likewise, but without the R suffix. */
47#define libm_alias_ldouble_other(from, to) \
48 libm_alias_ldouble_other_r (from, to, )
49
50/* Define aliases for a long double libm function that has internal
51 name FROM ## l ## R and public names TO ## suffix ## R for each
52 suffix of a supported floating-point type with the same format as
53 long double. This should only be used for functions where such
54 public names exist for _FloatN types, not for
55 implementation-namespace exported names (where there is one name
56 per format, not per type) or for obsolescent functions not provided
57 for _FloatN types. */
58#define libm_alias_ldouble_r(from, to, r) \
59 weak_alias (from ## l ## r, to ## l ## r); \
60 libm_alias_ldouble_other_r (from, to, r)
61
62/* Likewise, but without the R suffix. */
63#define libm_alias_ldouble(from, to) libm_alias_ldouble_r (from, to, )
64
65#endif
66