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Diffstat (limited to 'boost/log/attributes/value_visitation_fwd.hpp')
| -rw-r--r-- | boost/log/attributes/value_visitation_fwd.hpp | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/boost/log/attributes/value_visitation_fwd.hpp b/boost/log/attributes/value_visitation_fwd.hpp new file mode 100644 index 0000000000..5917c22a95 --- /dev/null +++ b/boost/log/attributes/value_visitation_fwd.hpp @@ -0,0 +1,45 @@ +/* + * Copyright Andrey Semashev 2007 - 2014. + * Distributed under the Boost Software License, Version 1.0. + * (See accompanying file LICENSE_1_0.txt or copy at + * http://www.boost.org/LICENSE_1_0.txt) + */ +/*! + * \file value_visitation_fwd.hpp + * \author Andrey Semashev + * \date 01.03.2008 + * + * The header contains forward declaration of convenience tools to apply visitors to an attribute value + * in the view. + */ + +#ifndef BOOST_LOG_ATTRIBUTES_VALUE_VISITATION_FWD_HPP_INCLUDED_ +#define BOOST_LOG_ATTRIBUTES_VALUE_VISITATION_FWD_HPP_INCLUDED_ + +#include <boost/log/detail/config.hpp> +#include <boost/log/attributes/fallback_policy_fwd.hpp> + +#ifdef BOOST_HAS_PRAGMA_ONCE +#pragma once +#endif + +namespace boost { + +BOOST_LOG_OPEN_NAMESPACE + +/*! + * \brief The class represents attribute value visitation result + */ +class visitation_result; + +/*! + * \brief Generic attribute value visitor invoker + */ +template< typename T, typename FallbackPolicyT = fallback_to_none > +class value_visitor_invoker; + +BOOST_LOG_CLOSE_NAMESPACE // namespace log + +} // namespace boost + +#endif // BOOST_LOG_ATTRIBUTES_VALUE_VISITATION_FWD_HPP_INCLUDED_ |