| 1 | /* |
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| 2 | * Copyright Andrey Semashev 2007 - 2015. |
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| 3 | * Distributed under the Boost Software License, Version 1.0. |
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| 4 | * (See accompanying file LICENSE_1_0.txt or copy at |
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| 5 | * http://www.boost.org/LICENSE_1_0.txt) |
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| 6 | */ |
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| 7 | /*! |
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| 8 | * \file unique_identifier_name.hpp |
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| 9 | * \author Andrey Semashev |
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| 10 | * \date 30.04.2008 |
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| 11 | * |
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| 12 | * The header contains \c BOOST_LOG_UNIQUE_IDENTIFIER_NAME macro definition. |
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| 13 | */ |
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| 14 | |
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| 15 | #ifndef BOOST_LOG_UTILITY_UNIQUE_IDENTIFIER_NAME_HPP_INCLUDED_ |
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| 16 | #define BOOST_LOG_UTILITY_UNIQUE_IDENTIFIER_NAME_HPP_INCLUDED_ |
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| 17 | |
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| 18 | #include <boost/preprocessor/cat.hpp> |
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| 19 | #include <boost/log/detail/config.hpp> |
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| 20 | |
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| 21 | #ifdef BOOST_HAS_PRAGMA_ONCE |
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| 22 | #pragma once |
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| 23 | #endif |
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| 24 | |
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| 25 | #ifndef BOOST_LOG_DOXYGEN_PASS |
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| 26 | |
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| 27 | #define BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL_(prefix, postfix)\ |
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| 28 | BOOST_PP_CAT(prefix, postfix) |
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| 29 | #define BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL(prefix, postfix)\ |
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| 30 | BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL_(prefix, postfix) |
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| 31 | |
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| 32 | #endif // BOOST_LOG_DOXYGEN_PASS |
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| 33 | |
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| 34 | /*! |
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| 35 | * \def BOOST_LOG_UNIQUE_IDENTIFIER_NAME(prefix) |
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| 36 | * |
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| 37 | * Constructs a unique (in the current file scope) token that can be used as a variable name. |
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| 38 | * The name will contain a prefix passed in the \a prefix argument. This allows to use the |
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| 39 | * macro multiple times on a single line. |
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| 40 | */ |
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| 41 | |
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| 42 | // In VC 7.0 and later when compiling with /ZI option __LINE__ macro is corrupted |
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| 43 | #ifdef BOOST_MSVC |
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| 44 | # define BOOST_LOG_UNIQUE_IDENTIFIER_NAME(prefix)\ |
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| 45 | BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL(prefix, __COUNTER__) |
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| 46 | #else |
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| 47 | # define BOOST_LOG_UNIQUE_IDENTIFIER_NAME(prefix)\ |
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| 48 | BOOST_LOG_UNIQUE_IDENTIFIER_NAME_INTERNAL(prefix, __LINE__) |
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| 49 | #endif // BOOST_MSVC |
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| 50 | |
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| 51 | #endif // BOOST_LOG_UTILITY_UNIQUE_IDENTIFIER_NAME_HPP_INCLUDED_ |
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| 52 | |
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