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/* Coefficient Java class declaration and implementation.
Copyright (C) 2001-2010 Roberto Bagnara <bagnara@cs.unipr.it>
Copyright (C) 2010-2016 BUGSENG srl (http://bugseng.com)
This file is part of the Parma Polyhedra Library (PPL).
The PPL 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.
The PPL 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, write to the Free Software Foundation,
Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1307, USA.
For the most up-to-date information see the Parma Polyhedra Library
site: http://bugseng.com/products/ppl/ . */
package parma_polyhedra_library;
import java.math.BigInteger;
//! A PPL coefficient.
/*! \ingroup PPL_Java_interface
Objects of type Coefficient are used to implement the integral valued
coefficients occurring in linear expressions, constraints, generators
and so on.
*/
public class Coefficient {
//! Holds the value of \p this.
private BigInteger value;
//! Builds a coefficient valued \p i.
public Coefficient(int i) {
value = BigInteger.valueOf(i);
}
//! Builds a coefficient valued \p l.
public Coefficient(long l) {
value = BigInteger.valueOf(l);
}
//! Builds a coefficient valued \p bi.
public Coefficient(BigInteger bi) {
value = bi;
}
//! Builds a coefficient from the decimal representation in \p s.
/*!
\exception java.lang.NumberFormatException
Thrown if \p s does not contain a valid decimal representation.
*/
public Coefficient(String s) {
value = new BigInteger(s);
}
//! Builds a copy of \p c.
public Coefficient(Coefficient c) {
value = c.value;
}
//! Returns a String representation of \p this.
public String toString() {
return value.toString();
}
//! Returns the value held by \p this.
public BigInteger getBigInteger() {
return value;
}
//! Returns the number of bits of PPL coefficients; 0 if unbounded.
public static native int bits();
private static native void initIDs();
static {
initIDs();
}
}
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