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59 lines
1.7 KiB
C++
59 lines
1.7 KiB
C++
// { dg-do run { target c++11 } }
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//
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// Copyright (C) 2012-2018 Free Software Foundation, Inc.
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//
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// This file is part of the GNU ISO C++ Library. This library is free
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// software; you can redistribute it and/or modify it under the
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// terms of the GNU General Public License as published by the
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// Free Software Foundation; either version 3, or (at your option)
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// any later version.
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//
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// This library is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License along
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// with this library; see the file COPYING3. If not see
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// <http://www.gnu.org/licenses/>.
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#include <unordered_map>
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#include <vector>
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#include <algorithm>
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#include <testsuite_hooks.h>
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void test01()
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{
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using namespace std;
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unordered_multimap<int, int> mmap;
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vector<int> values;
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size_t nb_bkts = mmap.bucket_count();
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int i = 0;
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for (;; ++i)
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{
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mmap.insert(make_pair(0, i));
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if (mmap.bucket_count() != nb_bkts)
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// Container got rehash
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break;
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values.clear();
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transform(mmap.begin(), mmap.end(), back_inserter(values),
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[](const pair<int, int>& p) { return p.second; });
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}
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vector<int> rehash_values;
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transform(mmap.begin(), mmap.end(), back_inserter(rehash_values),
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[](const pair<int, int>& p) { return p.second; });
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// Remove the value that result in a rehash
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rehash_values.erase(remove(rehash_values.begin(), rehash_values.end(), i));
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VERIFY( rehash_values == values );
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}
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int main()
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{
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test01();
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return 0;
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}
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