52 lines
1.6 KiB
C++
52 lines
1.6 KiB
C++
/*
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* Copyright Andrey Semashev 2007 - 2013.
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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 unique_identifier_name.hpp
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* \author Andrey Semashev
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* \date 30.04.2008
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*
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* The header contains \c BOOST_LOG_UNIQUE_IDENTIFIER_NAME macro definition.
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*/
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#ifndef BOOST_LOG_UTILITY_UNIQUE_IDENTIFIER_NAME_HPP_INCLUDED_
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#define BOOST_LOG_UTILITY_UNIQUE_IDENTIFIER_NAME_HPP_INCLUDED_
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#include <boost/preprocessor/cat.hpp>
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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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#ifndef BOOST_LOG_DOXYGEN_PASS
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#define BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL_(prefix, postfix)\
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BOOST_PP_CAT(prefix, postfix)
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#define BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL(prefix, postfix)\
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BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL_(prefix, postfix)
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#endif // BOOST_LOG_DOXYGEN_PASS
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/*!
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* \def BOOST_LOG_UNIQUE_IDENTIFIER_NAME(prefix)
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*
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* Constructs a unique (in the current file scope) token that can be used as a variable name.
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* The name will contain a prefix passed in the \a prefix argument. This allows to use the
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* macro multiple times on a single line.
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*/
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// In VC 7.0 and later when compiling with /ZI option __LINE__ macro is corrupted
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#ifdef BOOST_MSVC
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# define BOOST_LOG_UNIQUE_IDENTIFIER_NAME(prefix)\
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BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL(prefix, __COUNTER__)
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#else
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# define BOOST_LOG_UNIQUE_IDENTIFIER_NAME(prefix)\
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BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL(prefix, __LINE__)
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#endif // BOOST_MSVC
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#endif // BOOST_LOG_UTILITY_UNIQUE_IDENTIFIER_NAME_HPP_INCLUDED_
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