76 lines
1.3 KiB
C++
76 lines
1.3 KiB
C++
//
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// ip_hash_test.cpp
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//
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// Copyright 2011 Peter Dimov
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//
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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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#include <boost/intrusive_ptr.hpp>
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#include <boost/functional/hash.hpp>
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#include <boost/detail/lightweight_test.hpp>
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class base
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{
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private:
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int use_count_;
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base(base const &);
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base & operator=(base const &);
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protected:
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base(): use_count_(0)
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{
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}
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virtual ~base()
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{
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}
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public:
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long use_count() const
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{
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return use_count_;
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}
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inline friend void intrusive_ptr_add_ref(base * p)
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{
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++p->use_count_;
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}
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inline friend void intrusive_ptr_release(base * p)
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{
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if(--p->use_count_ == 0) delete p;
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}
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};
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struct X: public base
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{
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};
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int main()
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{
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boost::hash< boost::intrusive_ptr<X> > hasher;
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boost::intrusive_ptr<X> p1, p2( p1 ), p3( new X ), p4( p3 ), p5( new X );
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BOOST_TEST_EQ( p1, p2 );
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BOOST_TEST_EQ( hasher( p1 ), hasher( p2 ) );
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BOOST_TEST_NE( p1, p3 );
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BOOST_TEST_NE( hasher( p1 ), hasher( p3 ) );
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BOOST_TEST_EQ( p3, p4 );
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BOOST_TEST_EQ( hasher( p3 ), hasher( p4 ) );
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BOOST_TEST_NE( p3, p5 );
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BOOST_TEST_NE( hasher( p3 ), hasher( p5 ) );
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return boost::report_errors();
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}
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