exception.h
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	//
	// Created by Joachim Koerfer on 08.05.2019.
	//
	#ifndef EXCEPTION_H
	#define EXCEPTION_H

	#include <mpi.h>
	#include <string>
	#include <iostream>
	#include <exception>

	class FileOpenError: public std::exception {
	private:
	std::string msg_;
	public:
	FileOpenError(int MPI_Error, std::string file_name) {
	char error_string[BUFSIZ];
	int len_error, error_class;

	MPI_Error_class(MPI_Error, &error_class);
	MPI_Error_string(MPI_Error, error_string, &len_error);
	msg_ = "Error when reading file '" + file_name + "'\n" + error_string + "\n";
	}
	virtual const char* what() const throw()
	{
	return msg_.c_str();
	}
	};
	class FileWriteError: public std::exception {
	private:
	std::string msg_;
	public:
	FileWriteError(int MPI_Error, std::string file_name) {
	char error_string[BUFSIZ];
	int len_error, error_class;

	MPI_Error_class(MPI_Error, &error_class);
	MPI_Error_string(MPI_Error, error_string, &len_error);
	msg_ = "Error when writing file '" + file_name + "'\n" + error_string + "\n";
	}
	virtual const char* what() const throw()
	{
	return msg_.c_str();
	}
	};

	#endif