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