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| author | Bruno Haible <bruno@clisp.org> | 2012-04-03 21:13:26 +0200 |
|---|---|---|
| committer | Bruno Haible <bruno@clisp.org> | 2012-04-03 21:14:16 +0200 |
| commit | d6d7a9dc245badda81a34e336dda7baaeee78322 (patch) | |
| tree | 3392d28d0bf27211ae246208ed2620f2c9deed42 /lib | |
| parent | 2d538ff2c61e29c9a323b5e0f300ccc3610cebab (diff) | |
| download | gnulib-d6d7a9dc245badda81a34e336dda7baaeee78322.tar.gz | |
New module 'ilogbf'.
* lib/math.in.h (ilogbf): New declaration.
* lib/ilogbf.c: New file.
* m4/ilogbf.m4: New file.
* m4/math_h.m4 (gl_MATH_H): Test whether ilogbf is declared.
(gl_MATH_H_DEFAULTS): Initialize GNULIB_ILOGBF, HAVE_ILOGBF,
REPLACE_ILOGBF.
* modules/math (Makefile.am): Substitute GNULIB_ILOGBF, HAVE_ILOGBF,
REPLACE_ILOGBF.
* modules/ilogbf: New file.
* tests/test-math-c++.cc: Check the declaration of ilogbf.
* doc/posix-functions/ilogbf.texi: Mention the new module.
Diffstat (limited to 'lib')
| -rw-r--r-- | lib/ilogbf.c | 23 | ||||
| -rw-r--r-- | lib/math.in.h | 23 |
2 files changed, 46 insertions, 0 deletions
diff --git a/lib/ilogbf.c b/lib/ilogbf.c new file mode 100644 index 0000000000..d6403d0423 --- /dev/null +++ b/lib/ilogbf.c @@ -0,0 +1,23 @@ +/* Floating-point exponent. + Copyright (C) 2012 Free Software Foundation, Inc. + + This program is free software: you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program 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 General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <config.h> + +/* Specification. */ +#include <math.h> + +#define USE_FLOAT +#include "ilogb.c" diff --git a/lib/math.in.h b/lib/math.in.h index 83ba3476bc..74fca3a5e4 100644 --- a/lib/math.in.h +++ b/lib/math.in.h @@ -1087,6 +1087,29 @@ _GL_WARN_ON_USE (hypotl, "hypotl is unportable - " #endif +#if @GNULIB_ILOGBF@ +# if @REPLACE_ILOGBF@ +# if !(defined __cplusplus && defined GNULIB_NAMESPACE) +# undef ilogbf +# define ilogbf rpl_ilogbf +# endif +_GL_FUNCDECL_RPL (ilogbf, int, (float x)); +_GL_CXXALIAS_RPL (ilogbf, int, (float x)); +# else +# if !@HAVE_ILOGBF@ +_GL_FUNCDECL_SYS (ilogbf, int, (float x)); +# endif +_GL_CXXALIAS_SYS (ilogbf, int, (float x)); +# endif +_GL_CXXALIASWARN (ilogbf); +#elif defined GNULIB_POSIXCHECK +# undef ilogbf +# if HAVE_RAW_DECL_ILOGBF +_GL_WARN_ON_USE (ilogbf, "ilogbf is unportable - " + "use gnulib module ilogbf for portability"); +# endif +#endif + #if @GNULIB_ILOGB@ # if @REPLACE_ILOGB@ # if !(defined __cplusplus && defined GNULIB_NAMESPACE) |