1 // Boost.Units - A C++ library for zero-overhead dimensional analysis and
2 // unit/quantity manipulation and conversion
4 // Copyright (C) 2003-2008 Matthias Christian Schabel
5 // Copyright (C) 2008 Steven Watanabe
7 // Distributed under the Boost Software License, Version 1.0. (See
8 // accompanying file LICENSE_1_0.txt or copy at
9 // http://www.boost.org/LICENSE_1_0.txt)
11 #ifndef BOOST_UNITS_IS_QUANTITY_OF_SYSTEM_HPP
12 #define BOOST_UNITS_IS_QUANTITY_OF_SYSTEM_HPP
14 #include <boost/mpl/bool.hpp>
15 #include <boost/units/units_fwd.hpp>
16 #include <boost/units/is_unit_of_system.hpp>
22 /// check that a type is a quantity in a specified system
23 template<class T
,class System
>
24 struct is_quantity_of_system
:
28 template<class Unit
,class Y
,class System
>
29 struct is_quantity_of_system
< quantity
< Unit
,Y
>,System
> :
30 public is_unit_of_system
<Unit
, System
>
37 #endif // BOOST_UNITS_IS_QUANTITY_OF_SYSTEM_HPP