var.hpp

来自「Boost provides free peer-reviewed portab」· HPP 代码 · 共 35 行

/*=============================================================================
    Copyright (c) 2003 Martin Wille
    http://spirit.sourceforge.net/

    Use, modification and distribution is subject to the Boost Software
    License, Version 1.0. (See accompanying file LICENSE_1_0.txt or copy at
    http://www.boost.org/LICENSE_1_0.txt)
=============================================================================*/
#ifndef BOOST_SPIRIT_TEST_IMPL_VAR_HPP
#define BOOST_SPIRIT_TEST_IMPL_VAR_HPP

#include <boost/ref.hpp>

namespace test
{
    template <typename T>
    struct var_wrapper
        : public ::boost::reference_wrapper<T>
    {
        typedef ::boost::reference_wrapper<T> parent;

        explicit inline var_wrapper(T& t) : parent(t) {}

        inline T& operator()() const { return parent::get(); }
    };

    template <typename T>
    inline var_wrapper<T>
    var(T& t)
    {
        return var_wrapper<T>(t);
    }
}
#endif // BOOST_SPIRIT_TEST_IMPL_VAR_HPP