hppa: add bz entry for pthreadtypes.h fix
[glibc.git] / math / w_scalblnf.c
blob235518dfca6b0624a191828f98bb0ce0c7d13455
1 /* Wrapper for __scalblnf handles setting errno.
2 Copyright (C) 2014-2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
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.
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.
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/>. */
19 #include <errno.h>
20 #include <math.h>
21 #include <math_private.h>
23 float
24 __w_scalblnf (float x, long int n)
26 if (!isfinite (x) || x == 0.0f)
27 return x;
29 x = __scalblnf (x, n);
31 if (!isfinite (x) || x == 0.0f)
32 __set_errno (ERANGE);
34 return x;
36 weak_alias (__w_scalblnf, scalblnf)