56 lines
1.7 KiB
C++
56 lines
1.7 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2015.
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* Distributed under the Boost Software License, Version 1.0.
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* (See accompanying file LICENSE_1_0.txt or copy at
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* http://www.boost.org/LICENSE_1_0.txt)
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*/
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/*!
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* \file string_literal_fwd.hpp
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* \author Andrey Semashev
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* \date 24.06.2007
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*
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* The header contains forward declaration of a constant string literal wrapper.
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*/
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#ifndef BOOST_LOG_UTILITY_STRING_LITERAL_FWD_HPP_INCLUDED_
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#define BOOST_LOG_UTILITY_STRING_LITERAL_FWD_HPP_INCLUDED_
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#include <string>
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#include <boost/log/detail/config.hpp>
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#ifdef BOOST_HAS_PRAGMA_ONCE
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#pragma once
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#endif
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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/*!
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* \brief String literal wrapper
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*
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* The \c basic_string_literal is a thin wrapper around a constant string literal.
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* It provides interface similar to STL strings, but because of read-only nature
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* of string literals, lacks ability to modify string contents. However,
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* \c basic_string_literal objects can be assigned to and cleared.
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*
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* The main advantage of this class comparing to other string classes is that
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* it doesn't dynamically allocate memory and therefore is fast, thin and exception safe.
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*/
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template< typename CharT, typename TraitsT = std::char_traits< CharT > >
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class basic_string_literal;
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// Convenience typedefs
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#ifdef BOOST_LOG_USE_CHAR
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typedef basic_string_literal< char > string_literal; //!< String literal type for narrow characters
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#endif
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#ifdef BOOST_LOG_USE_WCHAR_T
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typedef basic_string_literal< wchar_t > wstring_literal; //!< String literal type for wide characters
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#endif
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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#endif // BOOST_LOG_UTILITY_STRING_LITERAL_FWD_HPP_INCLUDED_
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