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Diffstat (limited to 'boost/log/detail/deduce_char_type.hpp')
-rw-r--r-- | boost/log/detail/deduce_char_type.hpp | 108 |
1 files changed, 108 insertions, 0 deletions
diff --git a/boost/log/detail/deduce_char_type.hpp b/boost/log/detail/deduce_char_type.hpp new file mode 100644 index 0000000000..cb024609e9 --- /dev/null +++ b/boost/log/detail/deduce_char_type.hpp @@ -0,0 +1,108 @@ +/* + * 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 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_ |