mirror of
https://sourceware.org/git/glibc.git
synced 2025-11-03 20:53:13 +03:00
37 lines
1.1 KiB
C
37 lines
1.1 KiB
C
/* Wrapper for __scalbln handles setting errno.
|
|
Copyright (C) 2014-2020 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
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
#include <errno.h>
|
|
#include <math.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)
|