blob: 4a309b900d90471d13eb9f44d2b2aff705ef2860 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
|
/* Wrapper for __scalbln handles setting errno.
Copyright (C) 2014-2016 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>
double
__w_scalbln (double x, long int n)
{
if (!isfinite (x) || x == 0.0)
return x;
x = __scalbln (x, n);
if (!isfinite (x) || x == 0.0)
__set_errno (ERANGE);
return x;
}
weak_alias (__w_scalbln, scalbln)
#ifdef NO_LONG_DOUBLE
weak_alias (__w_scalbln, scalblnl)
#endif
|
