mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-24 10:22:41 +08:00
42 lines
1.2 KiB
C
42 lines
1.2 KiB
C
|
/* Wrapper for __log1p that handles setting errno.
|
||
|
|
Copyright (C) 2015 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_log1p (double x)
|
||
|
|
{
|
||
|
|
if (__glibc_unlikely (islessequal (x, -1.0)))
|
||
|
|
{
|
||
|
|
if (x == -1.0)
|
||
|
|
__set_errno (ERANGE);
|
||
|
|
else
|
||
|
|
__set_errno (EDOM);
|
||
|
|
}
|
||
|
|
|
||
|
|
return __log1p (x);
|
||
|
|
}
|
||
|
|
weak_alias (__w_log1p, log1p)
|
||
|
|
|
||
|
|
#ifdef NO_LONG_DOUBLE
|
||
|
|
strong_alias (__w_log1p, __log1pl)
|
||
|
|
weak_alias (__w_log1p, log1pl)
|
||
|
|
#endif
|