Chris@16: /*
Chris@101:  *          Copyright Andrey Semashev 2007 - 2015.
Chris@16:  * Distributed under the Boost Software License, Version 1.0.
Chris@16:  *    (See accompanying file LICENSE_1_0.txt or copy at
Chris@16:  *          http://www.boost.org/LICENSE_1_0.txt)
Chris@16:  */
Chris@16: /*!
Chris@16:  * \file   unique_identifier_name.hpp
Chris@16:  * \author Andrey Semashev
Chris@16:  * \date   30.04.2008
Chris@16:  *
Chris@16:  * The header contains \c BOOST_LOG_UNIQUE_IDENTIFIER_NAME macro definition.
Chris@16:  */
Chris@16: 
Chris@16: #ifndef BOOST_LOG_UTILITY_UNIQUE_IDENTIFIER_NAME_HPP_INCLUDED_
Chris@16: #define BOOST_LOG_UTILITY_UNIQUE_IDENTIFIER_NAME_HPP_INCLUDED_
Chris@16: 
Chris@16: #include <boost/preprocessor/cat.hpp>
Chris@16: #include <boost/log/detail/config.hpp>
Chris@16: 
Chris@16: #ifdef BOOST_HAS_PRAGMA_ONCE
Chris@16: #pragma once
Chris@16: #endif
Chris@16: 
Chris@16: #ifndef BOOST_LOG_DOXYGEN_PASS
Chris@16: 
Chris@16: #define BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL_(prefix, postfix)\
Chris@16:     BOOST_PP_CAT(prefix, postfix)
Chris@16: #define BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL(prefix, postfix)\
Chris@16:     BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL_(prefix, postfix)
Chris@16: 
Chris@16: #endif // BOOST_LOG_DOXYGEN_PASS
Chris@16: 
Chris@16: /*!
Chris@16:  * \def BOOST_LOG_UNIQUE_IDENTIFIER_NAME(prefix)
Chris@16:  *
Chris@16:  * Constructs a unique (in the current file scope) token that can be used as a variable name.
Chris@16:  * The name will contain a prefix passed in the \a prefix argument. This allows to use the
Chris@16:  * macro multiple times on a single line.
Chris@16:  */
Chris@16: 
Chris@16: // In VC 7.0 and later when compiling with /ZI option __LINE__ macro is corrupted
Chris@16: #ifdef BOOST_MSVC
Chris@16: #  define BOOST_LOG_UNIQUE_IDENTIFIER_NAME(prefix)\
Chris@16:     BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL(prefix, __COUNTER__)
Chris@16: #else
Chris@16: #  define BOOST_LOG_UNIQUE_IDENTIFIER_NAME(prefix)\
Chris@16:     BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL(prefix, __LINE__)
Chris@16: #endif // BOOST_MSVC
Chris@16: 
Chris@16: #endif // BOOST_LOG_UTILITY_UNIQUE_IDENTIFIER_NAME_HPP_INCLUDED_