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/////////////////////////////////////////////////////////////////////////////
// Name: general/Frac.cpp
// Purpose: A class to make handling fractions easier
// Author: Ben Boeckel
// Modified by: Ben Boeckel
// Created: Sun Mar 18 15:25:16 2007
// Copyright: ©2007-2008 Ben Boeckel and Nerdy Productions
// Licence:
// 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 "Frac.h"
void Frac::set(const int n, const int d) throw(Exception)
{
if (((type == Improper) || ((n <= d) && (type == Proper)) || ((d < n) && (type == Over1))) && (0 < d))
{
num = n;
denom = d;
}
else
throw(Exception("Frac", "values conflict with type"));
}
void Frac::set(const int n, const int d, const int t) throw(Exception)
{
setType(t);
set(n, d);
}
void Frac::setNum(const int n) throw(Exception)
{
set(n, denom);
}
void Frac::setDenom(const int d) throw(Exception)
{
set(num, d);
}
void Frac::setType(const int t) throw(BoundsException)
{
if (t < End)
{
type = t;
set(1, 1);
}
else
throw(BoundsException("Frac", "type"));
}
void Frac::reduce()
{
int i = num;
int j = denom;
int k;
while (j)
{
k = j;
j = i % j;
i = k;
}
num /= i;
denom /= i;
}
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