forked from boostorg/unordered
42 lines
1.4 KiB
C++
42 lines
1.4 KiB
C++
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// Copyright 2006-2009 Daniel James.
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// Distributed under the Boost Software License, Version 1.0. (See accompanying
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// file LICENSE_1_0.txt or copy at http://www.boost.org/LICENSE_1_0.txt)
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#include <boost/unordered_set.hpp>
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#include <boost/unordered_map.hpp>
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#include <vector>
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#include "../helpers/test.hpp"
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#include "../objects/test.hpp"
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UNORDERED_AUTO_TEST(needless_copies_1) {
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std::vector<std::pair<test::object, int> > src;
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src.push_back(std::pair<test::object, int>(test::object(1, 2), 0));
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boost::unordered_map<test::object, double> dst;
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dst[test::object(1, 2)] = 0;
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test::object_count count = test::global_object_count;
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dst.insert(src.begin(), src.end());
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BOOST_TEST(count == test::global_object_count);
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}
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UNORDERED_AUTO_TEST(needless_copies_2) {
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test::object x(1, 2);
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std::pair<test::object&, int> src(x, 0);
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boost::unordered_map<test::object, double> dst;
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test::object_count count = test::global_object_count;
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dst.emplace(src);
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BOOST_TEST_EQ(test::global_object_count.instances, count.instances + 1);
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BOOST_TEST_EQ(test::global_object_count.constructions, count.constructions + 1);
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count = test::global_object_count;
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dst.emplace(src);
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BOOST_TEST_EQ(test::global_object_count.instances, count.instances);
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BOOST_TEST(test::global_object_count.constructions <= count.constructions + 1);
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}
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RUN_TESTS()
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