1 | /* Wrapper for __scalblnl handles setting errno. |
2 | Copyright (C) 2014-2016 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 | <http://www.gnu.org/licenses/>. */ |
18 | |
19 | #include <errno.h> |
20 | #include <math.h> |
21 | #include <math_private.h> |
22 | |
23 | long double |
24 | __w_scalblnl (long double x, long int n) |
25 | { |
26 | if (!isfinite (x) || x == 0.0L) |
27 | return x + x; |
28 | |
29 | x = __scalblnl (x, n); |
30 | |
31 | if (!isfinite (x) || x == 0.0L) |
32 | __set_errno (ERANGE); |
33 | |
34 | return x; |
35 | } |
36 | weak_alias (__w_scalblnl, scalblnl) |
37 | |