projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
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_DETAIL_ORDINAL_HPP_INCLUDED | |
| 12 | #define BOOST_UNITS_DETAIL_ORDINAL_HPP_INCLUDED | |
| 13 | ||
| 14 | #include <boost/mpl/less.hpp> | |
| 15 | #include <boost/mpl/bool.hpp> | |
| 16 | ||
| 17 | namespace boost { | |
| 18 | namespace units { | |
| 19 | ||
| 20 | namespace detail { | |
| 21 | ||
| 22 | struct ordinal_tag {}; | |
| 23 | ||
| 24 | } | |
| 25 | ||
| 26 | template<int N> | |
| 27 | struct ordinal { | |
| 28 | typedef detail::ordinal_tag tag; | |
| 29 | static const long value = N; | |
| 30 | }; | |
| 31 | ||
| 32 | template<int N> | |
| 33 | const long ordinal<N>::value; | |
| 34 | ||
| 35 | } | |
| 36 | ||
| 37 | namespace mpl { | |
| 38 | ||
| 39 | template<> | |
| 40 | struct less_impl<units::detail::ordinal_tag, units::detail::ordinal_tag> { | |
| 41 | template<class T1, class T2> | |
| 42 | struct apply : bool_<(T1::value) < (T2::value)> {}; | |
| 43 | }; | |
| 44 | ||
| 45 | } | |
| 46 | ||
| 47 | } | |
| 48 | ||
| 49 | #endif |