imgtools/imglib/boostlibrary/boost/concept/usage.hpp
author Iain Williamson <iain.williamson@nokia.com>
Tue, 26 Jan 2010 13:42:54 +0000
branchfix
changeset 173 6080bce951bf
parent 0 044383f39525
permissions -rw-r--r--
Merging Bug 1494 fix back in
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// Copyright David Abrahams 2006. Distributed under the Boost
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// Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#ifndef BOOST_CONCEPT_USAGE_DWA2006919_HPP
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# define BOOST_CONCEPT_USAGE_DWA2006919_HPP
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# include <boost/concept/assert.hpp>
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# include <boost/detail/workaround.hpp>
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namespace boost { namespace concept { 
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# if BOOST_WORKAROUND(__GNUC__, == 2)
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#  define BOOST_CONCEPT_USAGE(model) ~model()
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# else 
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template <class Model>
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struct usage_requirements
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{
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    ~usage_requirements() { ((Model*)0)->~Model(); }
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};
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#  if BOOST_WORKAROUND(__GNUC__, <= 3)
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#   define BOOST_CONCEPT_USAGE(model)                                    \
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      model(); /* at least 2.96 and 3.4.3 both need this :( */           \
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      BOOST_CONCEPT_ASSERT((boost::concept::usage_requirements<model>)); \
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      ~model()
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#  else
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#   define BOOST_CONCEPT_USAGE(model)                                    \
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      BOOST_CONCEPT_ASSERT((boost::concept::usage_requirements<model>)); \
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      ~model()
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#  endif
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# endif 
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}} // namespace boost::concept
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#endif // BOOST_CONCEPT_USAGE_DWA2006919_HPP