1 /* Return value with maximum magnitude.
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 FLOAT
M_DECL_FUNC(__fmaxmag)22 M_DECL_FUNC (__fmaxmag) (FLOAT x, FLOAT y)
23 {
24   FLOAT ax = M_FABS (x);
25   FLOAT ay = M_FABS (y);
26   if (isgreater (ax, ay))
27     return x;
28   else if (isless (ax, ay))
29     return y;
30   else if (ax == ay)
31     return x > y ? x : y;
32   else if (issignaling (x) || issignaling (y))
33     return x + y;
34   else
35     return isnan (y) ? x : y;
36 }
37 
38 declare_mgen_alias (__fmaxmag, fmaxmag);
39