elf.h SHF_EXCLUDE signed int 31 bit shift triggers undefined behaviour.
[glibc.git] / math / w_log1pl.c
blob056fe07bcd5b510635ad435ed61e12e9f0b34a5d
1 /* Wrapper for __log1pl that handles setting errno.
2 Copyright (C) 2015 Free Software Foundation, Inc.
3 This file is part of the GNU C Library.
5 The GNU C Library is free software; you can redistribute it and/or
6 modify it under the terms of the GNU Lesser General Public
7 License as published by the Free Software Foundation; either
8 version 2.1 of the License, or (at your option) any later version.
10 The GNU C Library is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
13 Lesser General Public License for more details.
15 You should have received a copy of the GNU Lesser General Public
16 License along with the GNU C Library; if not, see
17 <http://www.gnu.org/licenses/>. */
19 #include <errno.h>
20 #include <math.h>
21 #include <math_private.h>
23 long double
24 __w_log1pl (long double x)
26 if (__glibc_unlikely (islessequal (x, -1.0L)))
28 if (x == -1.0L)
29 __set_errno (ERANGE);
30 else
31 __set_errno (EDOM);
34 return __log1pl (x);
36 weak_alias (__w_log1pl, log1pl)