boost/log/utility/string_literal_fwd.hpp
/* * 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 string_literal_fwd.hpp * \author Andrey Semashev * \date 24.06.2007 * * The header contains forward declaration of a constant string literal wrapper. */ #ifndef BOOST_LOG_UTILITY_STRING_LITERAL_FWD_HPP_INCLUDED_ #define BOOST_LOG_UTILITY_STRING_LITERAL_FWD_HPP_INCLUDED_ #include <string> #include <boost/log/detail/config.hpp> #ifdef BOOST_HAS_PRAGMA_ONCE #pragma once #endif namespace boost { BOOST_LOG_OPEN_NAMESPACE /*! * \brief String literal wrapper * * The \c basic_string_literal is a thin wrapper around a constant string literal. * It provides interface similar to STL strings, but because of read-only nature * of string literals, lacks ability to modify string contents. However, * \c basic_string_literal objects can be assigned to and cleared. * * The main advantage of this class comparing to other string classes is that * it doesn't dynamically allocate memory and therefore is fast, thin and exception safe. */ template< typename CharT, typename TraitsT = std::char_traits< CharT > > class basic_string_literal; // Convenience typedefs #ifdef BOOST_LOG_USE_CHAR typedef basic_string_literal< char > string_literal; //!< String literal type for narrow characters #endif #ifdef BOOST_LOG_USE_WCHAR_T typedef basic_string_literal< wchar_t > wstring_literal; //!< String literal type for wide characters #endif BOOST_LOG_CLOSE_NAMESPACE // namespace log } // namespace boost #endif // BOOST_LOG_UTILITY_STRING_LITERAL_FWD_HPP_INCLUDED_