forked from boostorg/smart_ptr
81 lines
1.5 KiB
C++
81 lines
1.5 KiB
C++
//
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// quick.cpp - a quick (CI) test for Boost.SmartPtr
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//
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// Copyright 2017 Peter Dimov
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//
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// Distributed under the Boost Software License, Version 1.0.
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//
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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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#include <boost/smart_ptr.hpp>
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#include <boost/core/lightweight_test.hpp>
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class X
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{
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private:
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X( X const & );
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X & operator=( X const & );
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public:
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static int instances;
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X()
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{
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++instances;
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}
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~X()
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{
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--instances;
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}
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};
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int X::instances = 0;
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int main()
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{
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{
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boost::shared_ptr<X> p1( new X );
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BOOST_TEST_EQ( X::instances, 1 );
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BOOST_TEST_EQ( p1.use_count(), 1 );
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boost::shared_ptr<X> p2( p1 );
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BOOST_TEST_EQ( p2.use_count(), 2 );
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boost::weak_ptr<X> wp( p1 );
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BOOST_TEST_EQ( wp.use_count(), 2 );
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p1.reset();
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BOOST_TEST_EQ( wp.use_count(), 1 );
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p2.reset();
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BOOST_TEST_EQ( wp.use_count(), 0 );
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BOOST_TEST_EQ( X::instances, 0 );
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}
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{
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boost::shared_ptr<X> p1 = boost::make_shared<X>();
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BOOST_TEST_EQ( X::instances, 1 );
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BOOST_TEST_EQ( p1.use_count(), 1 );
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boost::shared_ptr<X> p2( p1 );
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BOOST_TEST_EQ( p2.use_count(), 2 );
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boost::weak_ptr<X> wp( p1 );
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BOOST_TEST_EQ( wp.use_count(), 2 );
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p1.reset();
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BOOST_TEST_EQ( wp.use_count(), 1 );
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p2.reset();
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BOOST_TEST_EQ( wp.use_count(), 0 );
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BOOST_TEST_EQ( X::instances, 0 );
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}
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return boost::report_errors();
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}
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