Hash :
6a2bdd8e
Author :
Date :
2012-03-10T22:28:49
New module 'log1pf'. * lib/math.in.h (log1pf): New declaration. * lib/log1pf.c: New file. * m4/log1pf.m4: New file. * m4/math_h.m4 (gl_MATH_H): Test whether log1pf is declared. (gl_MATH_H_DEFAULTS): Initialize GNULIB_LOG1PF, HAVE_LOG1PF, REPLACE_LOG1PF. * modules/math (Makefile.am): Substitute GNULIB_LOG1PF, HAVE_LOG1PF, REPLACE_LOG1PF. * modules/log1pf: New file. * tests/test-math-c++.cc: Check the declaration of log1pf. * doc/posix-functions/log1pf.texi: Mention the new module.
/* Natural logarithm of 1 plus argument.
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>
float
log1pf (float x)
{
return (float) log1p ((double) x);
}