1 /* Return quiet nan.
2 Copyright (C) 1997-2022 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 #include <stdio.h>
21 #include <stdlib.h>
22 #include <string.h>
23 #include <ieee754.h>
24
25
26 FLOAT
M_DECL_FUNC(__nan)27 M_DECL_FUNC (__nan) (const char *tagp)
28 {
29 return M_STRTO_NAN (tagp, NULL, 0);
30 }
31
32 declare_mgen_alias (__nan, nan)
33