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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) 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_PUSH_FRONT_IF_HPP | |
12 | #define BOOST_UNITS_DETAIL_PUSH_FRONT_IF_HPP | |
13 | ||
14 | namespace boost { | |
15 | ||
16 | namespace units { | |
17 | ||
18 | template<class T, class Next> | |
19 | struct list; | |
20 | ||
21 | namespace detail { | |
22 | ||
23 | template<bool> | |
24 | struct push_front_if; | |
25 | ||
26 | template<> | |
27 | struct push_front_if<true> { | |
28 | template<class L, class T> | |
29 | struct apply { | |
30 | typedef list<T, L> type; | |
31 | }; | |
32 | }; | |
33 | ||
34 | template<> | |
35 | struct push_front_if<false> { | |
36 | template<class L, class T> | |
37 | struct apply { | |
38 | typedef L type; | |
39 | }; | |
40 | }; | |
41 | ||
42 | } | |
43 | ||
44 | } | |
45 | ||
46 | } | |
47 | ||
48 | #endif |