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de8aadd5 | 1 | /* Wrapper for __log1p that handles setting errno. |
2b778ceb | 2 | Copyright (C) 2015-2021 Free Software Foundation, Inc. |
de8aadd5 SL |
3 | This file is part of the GNU C Library. |
4 | ||
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. | |
9 | ||
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. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
16 | License along with the GNU C Library; if not, see | |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
de8aadd5 SL |
18 | |
19 | #include <errno.h> | |
20 | #include <math.h> | |
de8aadd5 | 21 | |
14348aae GG |
22 | FLOAT |
23 | M_DECL_FUNC (__w_log1p) (FLOAT x) | |
de8aadd5 | 24 | { |
14348aae | 25 | if (__glibc_unlikely (islessequal (x, M_LIT (-1.0)))) |
de8aadd5 | 26 | { |
14348aae | 27 | if (x == -1) |
de8aadd5 SL |
28 | __set_errno (ERANGE); |
29 | else | |
30 | __set_errno (EDOM); | |
31 | } | |
32 | ||
14348aae | 33 | return M_SUF (__log1p) (x); |
de8aadd5 | 34 | } |
14348aae | 35 | declare_mgen_alias (__w_log1p, log1p) |