1 // Boost.Units - A C++ library for zero-overhead dimensional analysis and 2 // unit/quantity manipulation and conversion 3 // 4 // Copyright (C) 2003-2008 Matthias Christian Schabel 5 // Copyright (C) 2007-2008 Steven Watanabe 6 // 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) 10 11 #ifndef BOOST_UNITS_REDUCE_UNIT_HPP_INCLUDED 12 #define BOOST_UNITS_REDUCE_UNIT_HPP_INCLUDED 13 14 /// \file 15 /// \brief Returns a unique type for every unit. 16 17 namespace boost { 18 namespace units { 19 20 #ifdef BOOST_UNITS_DOXYGEN 21 22 /// Returns a unique type for every unit. 23 template<class Unit> 24 struct reduce_unit { 25 typedef detail::unspecified type; 26 }; 27 28 #else 29 30 // default implementation: return Unit unchanged. 31 template<class Unit> 32 struct reduce_unit { 33 typedef Unit type; 34 }; 35 36 #endif 37 38 } 39 } 40 41 #endif 42