80 lines
2.5 KiB
C++
80 lines
2.5 KiB
C++
// (C) Copyright Gennadiy Rozental 2001.
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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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// See http://www.boost.org/libs/test for the library home page.
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//
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// File : $RCSfile$
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//
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// Version : $Revision$
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//
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// Description : simple helpers for creating cusom output manipulators
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// ***************************************************************************
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#ifndef BOOST_TEST_UTILS_TRIVIAL_SIGNLETON_HPP
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#define BOOST_TEST_UTILS_TRIVIAL_SIGNLETON_HPP
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// Boost.Test
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#include <boost/config.hpp>
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#include <boost/detail/workaround.hpp>
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// Boost
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#include <boost/test/detail/suppress_warnings.hpp>
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//____________________________________________________________________________//
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namespace boost {
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namespace unit_test {
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// ************************************************************************** //
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// ************** singleton ************** //
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// ************************************************************************** //
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template<typename Derived>
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class singleton {
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public:
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static Derived& instance() { static Derived the_inst; return the_inst; }
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BOOST_DELETED_FUNCTION(singleton(singleton const&))
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BOOST_DELETED_FUNCTION(singleton& operator=(singleton const&))
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protected:
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BOOST_DEFAULTED_FUNCTION(singleton(), {})
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BOOST_DEFAULTED_FUNCTION(~singleton(), {})
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};
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//____________________________________________________________________________//
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#define BOOST_TEST_SINGLETON_CONS( type ) \
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friend class boost::unit_test::singleton<type>; \
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type() {} \
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/**/
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#if BOOST_WORKAROUND(__DECCXX_VER, BOOST_TESTED_AT(60590042))
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#define BOOST_TEST_SINGLETON_INST( inst ) \
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template class unit_test::singleton< BOOST_JOIN( inst, _t ) > ; \
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namespace { BOOST_JOIN( inst, _t)& inst = BOOST_JOIN( inst, _t)::instance(); }
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#elif defined(__APPLE_CC__) && defined(__GNUC__) && __GNUC__ < 4
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#define BOOST_TEST_SINGLETON_INST( inst ) \
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static BOOST_JOIN( inst, _t)& inst = BOOST_JOIN (inst, _t)::instance();
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#else
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#define BOOST_TEST_SINGLETON_INST( inst ) \
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namespace { BOOST_JOIN( inst, _t)& inst = BOOST_JOIN( inst, _t)::instance(); }
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#endif
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//____________________________________________________________________________//
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} // namespace unit_test
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} // namespace boost
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#include <boost/test/detail/enable_warnings.hpp>
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#endif // BOOST_TEST_UTILS_TRIVIAL_SIGNLETON_HPP
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