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a7150173ed
shared_container_iterator now uses std::shared_ptr to store the reference to the container. boost::shared_ptr is still supported and is wrapped into std::shared_ptr on construction, so there is overhead due to allocation of std::shared_ptr state. Going forward, std::shared_ptr is expected to be the primary use case. As a bonus, this eliminates the dependency on Boost.SmartPtr. Moved shared_container_iterator.hpp into the iterator directory and left a forwarding header for backward compatibility.
78 lines
1.7 KiB
C++
78 lines
1.7 KiB
C++
// Copyright 2003 The Trustees of Indiana University.
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// Use, modification and distribution is subject to the Boost Software
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// License, Version 1.0. (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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// Shared container iterator adaptor
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// Author: Ronald Garcia
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// See http://boost.org/libs/utility/shared_container_iterator.html
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// for documentation.
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//
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// shared_iterator_test.cpp - Regression tests for shared_container_iterator.
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//
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#include <boost/iterator/shared_container_iterator.hpp>
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#include <boost/shared_ptr.hpp>
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#include <boost/core/lightweight_test.hpp>
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#include <vector>
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#include <memory>
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struct resource
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{
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static int count;
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resource() { ++count; }
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resource(resource const&) { ++count; }
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~resource() { --count; }
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};
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int resource::count = 0;
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typedef std::vector< resource > resources_t;
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typedef boost::shared_container_iterator< resources_t > iterator;
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template< typename SharedPtr >
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void set_range(iterator& i, iterator& end)
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{
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SharedPtr objs(new resources_t());
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for (int j = 0; j != 6; ++j)
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objs->push_back(resource());
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i = iterator(objs->begin(), objs);
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end = iterator(objs->end(), objs);
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BOOST_TEST_EQ(resource::count, 6);
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}
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int main() {
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BOOST_TEST_EQ(resource::count, 0);
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{
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iterator i;
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{
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iterator end;
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set_range< boost::shared_ptr< resources_t > >(i, end);
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BOOST_TEST_EQ(resource::count, 6);
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}
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BOOST_TEST_EQ(resource::count, 6);
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}
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BOOST_TEST_EQ(resource::count, 0);
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{
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iterator i;
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{
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iterator end;
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set_range< std::shared_ptr< resources_t > >(i, end);
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BOOST_TEST_EQ(resource::count, 6);
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}
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BOOST_TEST_EQ(resource::count, 6);
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}
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BOOST_TEST_EQ(resource::count, 0);
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return boost::report_errors();
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}
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