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/*
* IntegerConstantExpression.h
*
* Created on: 04.01.2013
* Author: chris
*/
#ifndef INTEGERCONSTANTEXPRESSION_H_
#define INTEGERCONSTANTEXPRESSION_H_
#include "ConstantExpression.h"
namespace storm {
namespace ir {
namespace expressions {
class IntegerConstantExpression : public ConstantExpression {
public:
IntegerConstantExpression(std::string constantName) : ConstantExpression(int_, constantName), defined(false), value(0) {
}
virtual ~IntegerConstantExpression() {
}
virtual int_fast64_t getValueAsInt(std::pair<std::vector<bool>, std::vector<int_fast64_t>> const* variableValues) const {
if (!defined) {
throw storm::exceptions::ExpressionEvaluationException() << "Cannot evaluate expression: "
<< "Integer constant '" << this->getConstantName() << "' is undefined.";
} else {
return value;
}
}
virtual ADD* toAdd() const {
if (!defined) {
throw storm::exceptions::ExpressionEvaluationException() << "Cannot evaluate expression: "
<< "Integer constant '" << this->getConstantName() << "' is undefined.";
}
storm::utility::CuddUtility* cuddUtility = storm::utility::cuddUtilityInstance();
return new ADD(*cuddUtility->getConstant(value));
}
virtual std::string toString() const {
std::string result = this->constantName;
if (defined) {
result += "[" + boost::lexical_cast<std::string>(value) + "]";
}
return result;
}
bool isDefined() {
return defined;
}
int getValue() {
return value;
}
void define(int_fast64_t value) {
defined = true;
this->value = value;
}
private:
bool defined;
int_fast64_t value;
};
}
}
}
#endif /* INTEGERCONSTANTEXPRESSION_H_ */