typeof/test/test.hpp

// Copyright (C) 2005 Arkadiy Vertleyb
// Use, modification and distribution is subject to the Boost Software
// License, Version 1.0. (http://www.boost.org/LICENSE_1_0.txt)

#ifndef BOOST_TYPEOF_TEST_HPP_INCLUDED
#define BOOST_TYPEOF_TEST_HPP_INCLUDED

#include <boost/typeof/typeof.hpp>
#include <boost/type_traits/is_same.hpp>
#include <boost/static_assert.hpp>

namespace boost { namespace type_of {

    template<class T, class U> 
    struct test_wrapper{};

    template<class T> 
    test_wrapper<T, T> test_helper(test_wrapper<T, T>*);

    template<class T> 
    struct test
    {
        enum {value = boost::is_same<
            BOOST_TYPEOF_TPL(test_helper(reinterpret_cast<test_wrapper<T, T>*>(0))),
            test_wrapper<T, T>
            >::value
        };
    };

}}

#include BOOST_TYPEOF_INCREMENT_REGISTRATION_GROUP()
BOOST_TYPEOF_REGISTER_TEMPLATE(boost::type_of::test_wrapper, 2)

#endif//BOOST_TYPEOF_TEST_HPP_INCLUDED