diff options
author | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2016-12-07 16:19:11 -0200 |
---|---|---|
committer | Gabriel F. T. Gomes <gftg@linux.vnet.ibm.com> | 2016-12-14 11:19:33 -0200 |
commit | 14348aaeff5ccb136e3fe967b86f97b9cea950a2 (patch) | |
tree | 3960d3281d9a4c6f17d8a15c5543ca4bbff9debe /math/w_log1p_template.c | |
parent | 3038145ca2355d8fde8c21448961c1be1ed5c287 (diff) | |
download | glibc-14348aaeff5ccb136e3fe967b86f97b9cea950a2.tar glibc-14348aaeff5ccb136e3fe967b86f97b9cea950a2.tar.gz glibc-14348aaeff5ccb136e3fe967b86f97b9cea950a2.tar.bz2 glibc-14348aaeff5ccb136e3fe967b86f97b9cea950a2.zip |
Make w_log1p type-generic
This patch converts the wrapper log1p (which set errno directly rather
than doing anything with __kernel_standard) to use the type-generic
template machinery, in the same way that has been done for ilogb.
Tested for powerpc64le, s390, and x86_64.
Diffstat (limited to 'math/w_log1p_template.c')
-rw-r--r-- | math/w_log1p_template.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/math/w_log1p_template.c b/math/w_log1p_template.c new file mode 100644 index 0000000000..1ac345029a --- /dev/null +++ b/math/w_log1p_template.c @@ -0,0 +1,36 @@ +/* Wrapper for __log1p 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> + +FLOAT +M_DECL_FUNC (__w_log1p) (FLOAT x) +{ + if (__glibc_unlikely (islessequal (x, M_LIT (-1.0)))) + { + if (x == -1) + __set_errno (ERANGE); + else + __set_errno (EDOM); + } + + return M_SUF (__log1p) (x); +} +declare_mgen_alias (__w_log1p, log1p) |