diff options
Diffstat (limited to 'math/w_scalblnf.c')
-rw-r--r-- | math/w_scalblnf.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/math/w_scalblnf.c b/math/w_scalblnf.c new file mode 100644 index 0000000000..99a3a8726b --- /dev/null +++ b/math/w_scalblnf.c @@ -0,0 +1,36 @@ +/* Wrapper for __scalblnf handles setting errno. + Copyright (C) 2014 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 +__w_scalblnf (float x, long int n) +{ + if (!__finitef (x) || x == 0.0f) + return x; + + x = __scalblnf (x, n); + + if (!__finitef (x) || x == 0.0f) + __set_errno (ERANGE); + + return x; +} +weak_alias (__w_scalblnf, scalblnf) |