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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 |