Mercurial > hg > vamp-build-and-test
comparison DEPENDENCIES/generic/include/boost/variant/detail/move.hpp @ 16:2665513ce2d3
Add boost headers
author | Chris Cannam |
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date | Tue, 05 Aug 2014 11:11:38 +0100 |
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children | c530137014c0 |
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15:663ca0da4350 | 16:2665513ce2d3 |
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1 //----------------------------------------------------------------------------- | |
2 // boost variant/detail/move.hpp header file | |
3 // See http://www.boost.org for updates, documentation, and revision history. | |
4 //----------------------------------------------------------------------------- | |
5 // | |
6 // Copyright (c) 2002-2003 Eric Friedman | |
7 // Copyright (c) 2002 by Andrei Alexandrescu | |
8 // | |
9 // Use, modification and distribution are subject to the | |
10 // Boost Software License, Version 1.0. (See accompanying file | |
11 // LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) | |
12 // | |
13 // This file derivative of MoJO. Much thanks to Andrei for his initial work. | |
14 // See <http://www.cuj.com/experts/2102/alexandr.htm> for information on MOJO. | |
15 // Re-issued here under the Boost Software License, with permission of the original | |
16 // author (Andrei Alexandrescu). | |
17 | |
18 | |
19 #ifndef BOOST_VARIANT_DETAIL_MOVE_HPP | |
20 #define BOOST_VARIANT_DETAIL_MOVE_HPP | |
21 | |
22 #include <iterator> // for iterator_traits | |
23 #include <new> // for placement new | |
24 | |
25 #include "boost/config.hpp" | |
26 #include "boost/detail/workaround.hpp" | |
27 #include "boost/move/move.hpp" | |
28 | |
29 namespace boost { | |
30 namespace detail { namespace variant { | |
31 | |
32 using boost::move; | |
33 | |
34 ////////////////////////////////////////////////////////////////////////// | |
35 // function template move_swap | |
36 // | |
37 // Swaps using Koenig lookup but falls back to move-swap for primitive | |
38 // types and on non-conforming compilers. | |
39 // | |
40 | |
41 #if defined(BOOST_NO_ARGUMENT_DEPENDENT_LOOKUP) \ | |
42 || BOOST_WORKAROUND(__GNUC__, BOOST_TESTED_AT(2)) | |
43 | |
44 // [Indicate that move_swap by overload is disabled...] | |
45 #define BOOST_NO_MOVE_SWAP_BY_OVERLOAD | |
46 | |
47 // [...and provide straight swap-by-move implementation:] | |
48 template <typename T> | |
49 inline void move_swap(T& lhs, T& rhs) | |
50 { | |
51 T tmp( boost::detail::variant::move(lhs) ); | |
52 lhs = boost::detail::variant::move(rhs); | |
53 rhs = boost::detail::variant::move(tmp); | |
54 } | |
55 | |
56 #else// !workaround | |
57 | |
58 namespace detail { namespace move_swap { | |
59 | |
60 template <typename T> | |
61 inline void swap(T& lhs, T& rhs) | |
62 { | |
63 T tmp( boost::detail::variant::move(lhs) ); | |
64 lhs = boost::detail::variant::move(rhs); | |
65 rhs = boost::detail::variant::move(tmp); | |
66 } | |
67 | |
68 }} // namespace detail::move_swap | |
69 | |
70 template <typename T> | |
71 inline void move_swap(T& lhs, T& rhs) | |
72 { | |
73 using detail::move_swap::swap; | |
74 | |
75 swap(lhs, rhs); | |
76 } | |
77 | |
78 #endif // workaround | |
79 | |
80 }} // namespace detail::variant | |
81 } // namespace boost | |
82 | |
83 #endif // BOOST_VARIANT_DETAIL_MOVE_HPP | |
84 | |
85 | |
86 |