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- //
- // quick.cpp - a quick (CI) test for Boost.SmartPtr
- //
- // Copyright 2017 Peter Dimov
- //
- // Distributed under the Boost Software License, Version 1.0.
- //
- // See accompanying file LICENSE_1_0.txt or copy at
- // http://www.boost.org/LICENSE_1_0.txt
- //
- #include <boost/smart_ptr.hpp>
- #include <boost/core/lightweight_test.hpp>
- class X
- {
- private:
- X( X const & );
- X & operator=( X const & );
- public:
- static int instances;
- X()
- {
- ++instances;
- }
- ~X()
- {
- --instances;
- }
- };
- int X::instances = 0;
- int main()
- {
- {
- boost::shared_ptr<X> p1( new X );
- BOOST_TEST_EQ( X::instances, 1 );
- BOOST_TEST_EQ( p1.use_count(), 1 );
- boost::shared_ptr<X> p2( p1 );
- BOOST_TEST_EQ( p2.use_count(), 2 );
- boost::weak_ptr<X> wp( p1 );
- BOOST_TEST_EQ( wp.use_count(), 2 );
- p1.reset();
- BOOST_TEST_EQ( wp.use_count(), 1 );
- p2.reset();
- BOOST_TEST_EQ( wp.use_count(), 0 );
- BOOST_TEST_EQ( X::instances, 0 );
- }
- {
- boost::shared_ptr<X> p1 = boost::make_shared<X>();
- BOOST_TEST_EQ( X::instances, 1 );
- BOOST_TEST_EQ( p1.use_count(), 1 );
- boost::shared_ptr<X> p2( p1 );
- BOOST_TEST_EQ( p2.use_count(), 2 );
- boost::weak_ptr<X> wp( p1 );
- BOOST_TEST_EQ( wp.use_count(), 2 );
- p1.reset();
- BOOST_TEST_EQ( wp.use_count(), 1 );
- p2.reset();
- BOOST_TEST_EQ( wp.use_count(), 0 );
- BOOST_TEST_EQ( X::instances, 0 );
- }
- return boost::report_errors();
- }
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