1 | /*============================================================================= |
2 | Copyright (c) 2001 Doug Gregor |
3 | Copyright (c) 1999-2003 Jaakko Jarvi |
4 | Copyright (c) 2001-2011 Joel de Guzman |
5 | |
6 | Distributed under the Boost Software License, Version 1.0. (See accompanying |
7 | file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt) |
8 | ==============================================================================*/ |
9 | #if !defined(FUSION_IGNORE_07192005_0329) |
10 | #define FUSION_IGNORE_07192005_0329 |
11 | |
12 | #include <boost/fusion/support/config.hpp> |
13 | |
14 | namespace boost { namespace fusion |
15 | { |
16 | // Swallows any assignment (by Doug Gregor) |
17 | namespace detail |
18 | { |
19 | struct swallow_assign |
20 | { |
21 | template<typename T> |
22 | BOOST_FUSION_CONSTEXPR_THIS BOOST_FUSION_GPU_ENABLED |
23 | swallow_assign const& |
24 | operator=(const T&) const |
25 | { |
26 | return *this; |
27 | } |
28 | }; |
29 | } |
30 | |
31 | // "ignore" allows tuple positions to be ignored when using "tie". |
32 | BOOST_CONSTEXPR_OR_CONST detail::swallow_assign ignore = detail::swallow_assign(); |
33 | }} |
34 | |
35 | #endif |
36 | |