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#ifndef EXCEPTION_H_
#define EXCEPTION_H_
#include <iostream>
#include <string>
class Exception
{
friend std::ostream &operator<<(std::ostream &str,
Exception const &e);
std::string d_reason;
public:
virtual ~Exception();
virtual void process() const = 0;
virtual operator std::string() const;
protected:
Exception(char const *reason);
};
inline Exception::~Exception()
{}
inline Exception::operator std::string() const
{
return d_reason;
}
inline Exception::Exception(char const *reason)
:
d_reason(reason)
{}
inline std::ostream &operator<<(std::ostream &str, Exception const &e)
{
return str << e.operator std::string();
}
#endif
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