| // Boost.Units - A C++ library for zero-overhead dimensional analysis and | |
| // unit/quantity manipulation and conversion | |
| // | |
| // Copyright (C) 2003-2008 Matthias Christian Schabel | |
| // Copyright (C) 2008 Steven Watanabe | |
| // | |
| // Distributed under 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_UNITS_IS_QUANTITY_HPP | |
| #define BOOST_UNITS_IS_QUANTITY_HPP | |
| /// | |
| /// \file | |
| /// \brief Check that a type is a quantity. | |
| /// | |
| #include <boost/mpl/bool.hpp> | |
| #include <boost/units/units_fwd.hpp> | |
| namespace boost { | |
| namespace units { | |
| /// Check that a type is a quantity. | |
| template<typename T> | |
| struct is_quantity : | |
| public mpl::false_ | |
| { }; | |
| template<class Unit, | |
| class Y> | |
| struct is_quantity< quantity<Unit,Y> > : | |
| public mpl::true_ | |
| { }; | |
| } // namespace units | |
| } // namespace boost | |
| #endif // BOOST_UNITS_IS_QUANTITY_HPP |