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- /*
- * Copyright Andrey Semashev 2007 - 2015.
- * 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 native_typeof.hpp
- * \author Andrey Semashev
- * \date 08.03.2009
- *
- * This header is the Boost.Log library implementation, see the library documentation
- * at http://www.boost.org/doc/libs/release/libs/log/doc/html/index.html.
- */
- #ifndef BOOST_LOG_DETAIL_NATIVE_TYPEOF_HPP_INCLUDED_
- #define BOOST_LOG_DETAIL_NATIVE_TYPEOF_HPP_INCLUDED_
- #include <boost/log/detail/config.hpp>
- #ifdef BOOST_HAS_PRAGMA_ONCE
- #pragma once
- #endif
- #if !defined(BOOST_NO_CXX11_DECLTYPE)
- namespace boost {
- BOOST_LOG_OPEN_NAMESPACE
- namespace aux {
- template< typename T >
- T get_root_type(T const&);
- } // namespace aux
- BOOST_LOG_CLOSE_NAMESPACE // namespace log
- } // namespace boost
- #define BOOST_LOG_TYPEOF(x) decltype(::boost::log::aux::get_root_type(x))
- #elif defined(__COMO__) && defined(__GNUG__)
- #define BOOST_LOG_TYPEOF(x) typeof(x)
- #elif defined(__GNUC__) || defined(__MWERKS__)
- #define BOOST_LOG_TYPEOF(x) __typeof__(x)
- #endif
- #if !defined(BOOST_NO_CXX11_AUTO_DECLARATIONS)
- #define BOOST_LOG_AUTO(var, expr) auto var = (expr)
- #endif
- #if !defined(BOOST_LOG_AUTO) && defined(BOOST_LOG_TYPEOF)
- #define BOOST_LOG_AUTO(var, expr) BOOST_LOG_TYPEOF((expr)) var = (expr)
- #endif
- #endif // BOOST_LOG_DETAIL_NATIVE_TYPEOF_HPP_INCLUDED_
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