| /* Wrapper for __scalbln handles setting errno. |
| Copyright (C) 2014-2018 Free Software Foundation, Inc. |
| This file is part of the GNU C Library. |
| |
| The GNU C Library is free software; you can redistribute it and/or |
| modify it under the terms of the GNU Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 of the License, or (at your option) any later version. |
| |
| The GNU C Library is distributed in the hope that it will be useful, |
| but WITHOUT ANY WARRANTY; without even the implied warranty of |
| MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <errno.h> |
| #include <math.h> |
| #include <math_private.h> |
| |
| FLOAT |
| M_DECL_FUNC (__w_scalbln) (FLOAT x, long int n) |
| { |
| if (!isfinite (x) || x == 0) |
| return x + x; |
| |
| x = M_SUF (__scalbln) (x, n); |
| |
| if (!isfinite (x) || x == 0) |
| __set_errno (ERANGE); |
| |
| return x; |
| } |
| |
| declare_mgen_alias (__w_scalbln, scalbln) |
