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1 | /* | |
2 | * Copyright Andrey Semashev 2007 - 2015. | |
3 | * Distributed under the Boost Software License, Version 1.0. | |
4 | * (See accompanying file LICENSE_1_0.txt or copy at | |
5 | * http://www.boost.org/LICENSE_1_0.txt) | |
6 | */ | |
7 | /*! | |
8 | * \file value_visitation_fwd.hpp | |
9 | * \author Andrey Semashev | |
10 | * \date 01.03.2008 | |
11 | * | |
12 | * The header contains forward declaration of convenience tools to apply visitors to an attribute value | |
13 | * in the view. | |
14 | */ | |
15 | ||
16 | #ifndef BOOST_LOG_ATTRIBUTES_VALUE_VISITATION_FWD_HPP_INCLUDED_ | |
17 | #define BOOST_LOG_ATTRIBUTES_VALUE_VISITATION_FWD_HPP_INCLUDED_ | |
18 | ||
19 | #include <boost/log/detail/config.hpp> | |
20 | #include <boost/log/attributes/fallback_policy_fwd.hpp> | |
21 | ||
22 | #ifdef BOOST_HAS_PRAGMA_ONCE | |
23 | #pragma once | |
24 | #endif | |
25 | ||
26 | namespace boost { | |
27 | ||
28 | BOOST_LOG_OPEN_NAMESPACE | |
29 | ||
30 | /*! | |
31 | * \brief The class represents attribute value visitation result | |
32 | */ | |
33 | class visitation_result; | |
34 | ||
35 | /*! | |
36 | * \brief Generic attribute value visitor invoker | |
37 | */ | |
38 | template< typename T, typename FallbackPolicyT = fallback_to_none > | |
39 | class value_visitor_invoker; | |
40 | ||
41 | BOOST_LOG_CLOSE_NAMESPACE // namespace log | |
42 | ||
43 | } // namespace boost | |
44 | ||
45 | #endif // BOOST_LOG_ATTRIBUTES_VALUE_VISITATION_FWD_HPP_INCLUDED_ |