logic_literal.cc

由matlab开发的hybrid系统的描述语言

/*
	HYSDEL
	Copyright (C) 1999-2002  Fabio D. Torrisi

	This file is part of HYSDEL.
    
	HYSDEL 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.

	HYSDEL 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 library; if not, write to the Free Software
	Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA

	CONTACT INFORMATION
	===================
	Fabio D. Torrisi
	ETH Zentrum
	Physikstrasse. 3 ETL,
	CH-8032 Zurich
	Switzerland
	mailto:[e-mail] (preferred)
*/

#include "Logic_literal.h"
#include "Var_symbol.h"


Logic_literal::Logic_literal(bool n, const Var_symbol * s) {
	neg = n;
	variable = s;
}

Logic_literal * Logic_literal::clone() {
	return new Logic_literal(neg, variable);
}

bool Logic_literal::is_equal(const Logic_literal * equal) const {
	return (variable == equal->variable) && (neg == equal->neg);
}

bool Logic_literal::get_neg() const {
	return neg;
}

const Var_symbol * Logic_literal::get_variable() const {
	return variable;
}


string Logic_literal::to_string() const {
	string res;
	if (neg) res += "~";
	res += variable->to_matlab();
	return res;
}