#ifndef WARN_IF_IGNORED_INCLUDED
#define WARN_IF_IGNORED_INCLUDED

template<typename result_type>
class warn_if_ignored
{
public: // construction/destruction
    
    warn_if_ignored(const result_type & decorated);
    warn_if_ignored(const warn_if_ignored &);
    ~warn_if_ignored();

public: // conversion

    operator result_type () const;

private: // inappropriate

    warn_if_ignored & operator=(const warn_if_ignored &);

private: // state

    result_type result;
    mutable bool ignored;
};

#include "warn_if_ignored-template.hpp"

#endif