1 /* Return the greatest floating-point number less than X.
2 Copyright (C) 2016-2022 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 #include <math.h>
20
21 /* Return the greatest floating-point number less than X. */
22 FLOAT
M_DECL_FUNC(__nextdown)23 M_DECL_FUNC (__nextdown) (FLOAT x)
24 {
25 return -M_SUF (__nextup) (-x);
26 }
27
28 declare_mgen_alias (__nextdown, nextdown);
29