exception.h

/*****************************************************************************
* Multiscale Universal Interface Code Coupling Library                       *
*                                                                            *
* Copyright (C) 2019 Y. H. Tang, S. Kudo, X. Bian, Z. Li, G. E. Karniadakis  *
*                                                                            *
* This software is jointly licensed under the Apache License, Version 2.0    *
* and the GNU General Public License version 3, you may use it according     *
* to either.                                                                 *
*                                                                            *
* ** Apache License, version 2.0 **                                          *
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* Licensed under the Apache License, Version 2.0 (the "License");            *
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* You may obtain a copy of the License at                                    *
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* http://www.apache.org/licenses/LICENSE-2.0                                 *
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* distributed under the License is distributed on an "AS IS" BASIS,          *
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.   *
* See the License for the specific language governing permissions and        *
* limitations under the License.                                             *
*                                                                            *
* ** GNU General Public License, version 3 **                                *
*                                                                            *
* 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.                               *
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* You should have received a copy of the GNU General Public License          *
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*****************************************************************************/

/**
 * @file exception.h
 * @author Y. H. Tang
 * @date 10 March 2014
 * @brief Base class for exception handling.
 */

#ifndef EXCEPTION_H_
#define EXCEPTION_H_

#include "util.h"

namespace mui {

inline std::ostream& operator << ( std::ostream &out, std::exception const& err ) {
	return ( out << err.what() );
}

struct exception_segv {
	explicit inline exception_segv() {
		handle();
	}
	template<typename HEAD, typename ...TAIL>
	inline exception_segv( HEAD const &head, TAIL const &... tail ) {
		handle( head, tail... );
	}
	template<typename HEAD, typename ...TAIL>
	inline void handle( HEAD const &head, TAIL const &... tail ) {
		std::cerr << head;
		handle( tail... );
	}
	inline void handle( void ) {
		raise( SIGSEGV );
	}
};

struct exception_abort {
	inline exception_abort( const std::exception& except ) {
		std::cerr << except.what() << std::endl;
		raise( SIGABRT );
	}
};

struct exception_throw {
	inline exception_throw( const std::exception& ) {
		throw;
	}
};

}
#endif /* EXCEPTION_H_ */