Ticket #5254: TR1_hash_workaround.cpp

#include <boost/tr1/functional.hpp>


struct my_key {
    int m_i;
    my_key() : m_i(0){};

    bool operator==(const my_key &rhs) const
                { return m_i == rhs.m_i; }
    operator std::size_t () const
                { return m_i; }
};

#ifdef BOOST_HAS_TR1_HASH
namespace std {
namespace tr1 {
#else
namespace boost {
#endif // def BOOST_HAS_TR1_HASH
template<>
struct hash<my_key>
        {
        std::size_t operator()(const my_key& r) const
                { return (std::size_t)r; }
    };

#ifdef BOOST_HAS_TR1_HASH
} // namespace tr1
} // namespace std
#else
} // namespace boost
#endif // def BOOST_HAS_TR1_HASH

int     main()
        {
        return 0;
        }