new module 'modff'

[Bruno Haible]

Similarly for the 'modff' function. Here's the main piece of code:

================================= lib/modff.c =================================
/* Get signed integer and fractional parts of a floating-point number.
   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
modff (float x, float *iptr)
{
  double i;
  double frac = modf ((double) x, &i);
  *iptr = (float) i;
  return (float) frac;
}
===============================================================================
-- 
In memoriam Annalena Tonelli <http://en.wikipedia.org/wiki/Annalena_Tonelli>