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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 deduce_char_type.hpp
- * \author Andrey Semashev
- * \date 17.11.2012
- *
- * \brief 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_DEDUCE_CHAR_TYPE_HPP_INCLUDED_
- #define BOOST_LOG_DETAIL_DEDUCE_CHAR_TYPE_HPP_INCLUDED_
- #include <boost/log/detail/config.hpp>
- #include <boost/log/detail/header.hpp>
- #ifdef BOOST_HAS_PRAGMA_ONCE
- #pragma once
- #endif
- namespace boost {
- BOOST_LOG_OPEN_NAMESPACE
- namespace aux {
- template< typename T >
- struct deduced_char_type;
- template< >
- struct deduced_char_type< char >
- {
- typedef char type;
- };
- template< >
- struct deduced_char_type< const char >
- {
- typedef char type;
- };
- template< >
- struct deduced_char_type< wchar_t >
- {
- typedef wchar_t type;
- };
- template< >
- struct deduced_char_type< const wchar_t >
- {
- typedef wchar_t type;
- };
- //! Auxiliary traits to detect character type from a string
- template< typename RangeT >
- struct deduce_char_type :
- public deduced_char_type< typename RangeT::value_type >
- {
- };
- template< typename T >
- struct deduce_char_type< T* > :
- public deduced_char_type< T >
- {
- };
- template< typename T >
- struct deduce_char_type< T* const > :
- public deduced_char_type< T >
- {
- };
- template< typename T, unsigned int CountV >
- struct deduce_char_type< T[CountV] > :
- public deduced_char_type< T >
- {
- };
- template< typename T >
- struct deduce_char_type< T& > :
- public deduce_char_type< T >
- {
- };
- #if !defined(BOOST_NO_CXX11_RVALUE_REFERENCES)
- template< typename T >
- struct deduce_char_type< T&& > :
- public deduce_char_type< T >
- {
- };
- #endif
- } // namespace aux
- BOOST_LOG_CLOSE_NAMESPACE // namespace log
- } // namespace boost
- #include <boost/log/detail/footer.hpp>
- #endif // BOOST_LOG_DETAIL_DEDUCE_CHAR_TYPE_HPP_INCLUDED_
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