The R Project SVN R

/*

 *  Mathlib : A C Library of Special Functions

 *  Copyright (C) 1998 Ross Ihaka

 *

 *  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 2 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, a copy is available at

 *  http://www.r-project.org/Licenses/

 *

 *  SYNOPSIS

 *

 *    #include <Rmath.h>

 *    double ftrunc(double x);

 *

 *  DESCRIPTION

 *

 *    Truncation toward zero.

 */

#include "nmath.h"

double ftrunc(double x)

{

	if(x >= 0) return floor(x);

	else return ceil(x);

}