|  | /* Wrapper for __log1pl that handles setting errno. | 
|  | Copyright (C) 2015-2016 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> | 
|  |  | 
|  | long double | 
|  | __w_log1pl (long double x) | 
|  | { | 
|  | if (__glibc_unlikely (islessequal (x, -1.0L))) | 
|  | { | 
|  | if (x == -1.0L) | 
|  | __set_errno (ERANGE); | 
|  | else | 
|  | __set_errno (EDOM); | 
|  | } | 
|  |  | 
|  | return __log1pl (x); | 
|  | } | 
|  | weak_alias (__w_log1pl, log1pl) |