/*
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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 unused_variable.hpp
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* \author Andrey Semashev
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* \date 10.05.2008
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*
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* The header contains definition of a macro to suppress compiler warnings about unused variables.
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*/
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#ifndef BOOST_LOG_UTILITY_UNUSED_VARIABLE_HPP_INCLUDED_
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#define BOOST_LOG_UTILITY_UNUSED_VARIABLE_HPP_INCLUDED_
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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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#if defined(__GNUC__)
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//! The macro suppresses compiler warnings for \c var being unused
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#define BOOST_LOG_UNUSED_VARIABLE(type, var, initializer) __attribute__((unused)) type var initializer
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#else
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namespace boost {
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BOOST_LOG_OPEN_NAMESPACE
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namespace aux {
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template< typename T >
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BOOST_FORCEINLINE void no_unused_warnings(T const&) BOOST_NOEXCEPT {}
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} // namespace aux
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BOOST_LOG_CLOSE_NAMESPACE // namespace log
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} // namespace boost
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//! The macro suppresses compiler warnings for \c var being unused
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#define BOOST_LOG_UNUSED_VARIABLE(type, var, initializer) type var initializer; ::boost::log::aux::no_unused_warnings(var)
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#endif
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#endif // BOOST_LOG_UTILITY_UNUSED_VARIABLE_HPP_INCLUDED_
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