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lo-utils.cc
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C/C++ Source or Header
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1996-03-03
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61 lines
// utils.cc
/*
Copyright (C) 1996 John W. Eaton
This file is part of Octave.
Octave 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, or (at your option) any
later version.
Octave 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 Octave; see the file COPYING. If not, write to the Free
Software Foundation, 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*/
#ifdef HAVE_CONFIG_H
#include <config.h>
#endif
#include <climits>
#include "lo-mappers.h"
#include "lo-utils.h"
// Convert X to the nearest integer value. Should not pass NaN to
// this function.
int
NINT (double x)
{
if (x > INT_MAX)
return INT_MAX;
else if (x < INT_MIN)
return INT_MIN;
else
return (x > 0) ? ((int) (x + 0.5)) : ((int) (x - 0.5));
}
double
D_NINT (double x)
{
if (xisinf (x) || xisnan (x))
return x;
else
return floor (x + 0.5);
}
/*
;;; Local Variables: ***
;;; mode: C++ ***
;;; End: ***
*/