| 123456789101112131415161718192021222324252627282930313233343536373839404142 | // 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
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