| // 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_UNIT_OF_SYSTEM_HPP |
| #define BOOST_UNITS_IS_UNIT_OF_SYSTEM_HPP |
| |
| /// |
| /// \file |
| /// \brief Check that a type is a unit in a specified system. |
| /// |
| |
| #include <boost/mpl/bool.hpp> |
| #include <boost/units/units_fwd.hpp> |
| |
| namespace boost { |
| |
| namespace units { |
| |
| /// Check that a type is a unit in a specified system. |
| template<class T,class System> |
| struct is_unit_of_system : |
| public mpl::false_ |
| { }; |
| |
| template<class Dim,class System> |
| struct is_unit_of_system< unit<Dim,System>,System > : |
| public mpl::true_ |
| { }; |
| |
| template<class Dim,class System> |
| struct is_unit_of_system< absolute<unit<Dim,System> >,System > : |
| public mpl::true_ |
| { }; |
| |
| } // namespace units |
| |
| } // namespace boost |
| |
| #endif // BOOST_UNITS_IS_UNIT_OF_SYSTEM_HPP |