Mercurial > hg > octave-nkf > gnulib-hg
view lib/logf.c @ 15863:c2fa2febdb1f
New module 'logf'.
* lib/math.in.h (logf): New declaration.
* lib/logf.c: New file.
* m4/logf.m4: New file.
* m4/math_h.m4 (gl_MATH_H): Test whether logf is declared.
(gl_MATH_H_DEFAULTS): Initialize GNULIB_LOGF, HAVE_LOGF.
* modules/math (Makefile.am): Substitute GNULIB_LOGF, HAVE_LOGF.
* modules/logf: New file.
* tests/test-math-c++.cc: Check the declaration of logf.
* doc/posix-functions/logf.texi: Mention the new module.
author | Bruno Haible <bruno@clisp.org> |
---|---|
date | Sat, 08 Oct 2011 22:18:44 +0200 (2011-10-08) |
parents | |
children | 8250f2777afc |
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/* Natural logarithmic function. Copyright (C) 2011 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> float logf (float x) { return (float) log ((double) x); }