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/* Wrapper for __scalbln handles setting errno.
Copyright (C) 2014-2017 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;
}
/* Define strong_alias to nothing because we don't want
declare_mgen_alias to create a strong alias for scalblnl. */
#undef strong_alias
#define strong_alias(name, alias_name)
declare_mgen_alias (__w_scalbln, scalbln)
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