#include <exception>
#include <string>
#include <iostream>
 
class SomeException:
	public std::exception
{
	std::string
		message;
public:
	SomeException( const std::string &message ):
		message( message )
	{
	}
 
	const char *what(void) const throw() override
	{
		return message.c_str();
	}
};  
 
int main(void)
{
	try
	{
		throw SomeException( "abcdef" );
	}
	catch( const std::exception &exception )
	{
		std::cout
			<< exception.what() 
			<< std::endl;
	}
	return 0;
}  

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