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/********************* */
/*! \file exception.h
** \verbatim
** Original author: mdeters
** Major contributors: none
** Minor contributors (to current version): dejan
** This file is part of the CVC4 prototype.
** Copyright (c) 2009, 2010, 2011 The Analysis of Computer Systems Group (ACSys)
** Courant Institute of Mathematical Sciences
** New York University
** See the file COPYING in the top-level source directory for licensing
** information.\endverbatim
**
** \brief CVC4's exception base class and some associated utilities.
**
** CVC4's exception base class and some associated utilities.
**/
#include "cvc4_public.h"
#ifndef __CVC4__EXCEPTION_H
#define __CVC4__EXCEPTION_H
#include <iostream>
#include <string>
#include <sstream>
#include <exception>
namespace CVC4 {
class CVC4_PUBLIC Exception : public std::exception {
protected:
std::string d_msg;
public:
// Constructors
Exception() throw() : d_msg("Unknown exception") {}
Exception(const std::string& msg) throw() : d_msg(msg) {}
Exception(const char* msg) throw() : d_msg(msg) {}
// Destructor
virtual ~Exception() throw() {}
// NON-VIRTUAL METHOD for setting and printing the error message
void setMessage(const std::string& msg) throw() { d_msg = msg; }
std::string getMessage() const throw() { return d_msg; }
// overridden from base class std::exception
virtual const char* what() const throw() { return d_msg.c_str(); }
/**
* Get this exception as a string. Note that
* cout << ex.toString();
* is subtly different from
* cout << ex;
* which is equivalent to
* ex.toStream(cout);
* That is because with the latter two, the output language (and
* other preferences) for exprs on the stream is respected. In
* toString(), there is no stream, so the parameters are default
* and you'll get exprs and types printed using the AST language.
*/
std::string toString() const throw() {
std::stringstream ss;
toStream(ss);
return ss.str();
}
/**
* Printing: feel free to redefine toStream(). When overridden in
* a derived class, it's recommended that this method print the
* type of exception before the actual message.
*/
virtual void toStream(std::ostream& os) const throw() { os << d_msg; }
};/* class Exception */
inline std::ostream& operator<<(std::ostream& os, const Exception& e) throw() CVC4_PUBLIC;
inline std::ostream& operator<<(std::ostream& os, const Exception& e) throw() {
e.toStream(os);
return os;
}
}/* CVC4 namespace */
#endif /* __CVC4__EXCEPTION_H */
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