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67 lines
2.1 KiB
C++
67 lines
2.1 KiB
C++
// Copyright (C) 2016-2018 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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// 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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// 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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// { dg-options "-D_GLIBCXX_DEBUG" }
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// { dg-do run { target c++11 } }
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// { dg-skip-if "" { *-*-* } { "-D_GLIBCXX_PROFILE" } }
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#include <algorithm>
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#include <functional>
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#include <testsuite_iterators.h>
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#include <testsuite_hooks.h>
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using __gnu_test::test_container;
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using __gnu_test::forward_iterator_wrapper;
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struct X
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{
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int val;
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bool odd() const { return val % 2; }
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// Partitioned so that all odd values come before even values:
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bool operator<(const X& x) const { return this->odd() && !x.odd(); }
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};
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void
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test01()
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{
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// Test with range that is partitioned, but not sorted.
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X seq[] = { 1, 3, 5, 7, 1, 6, 4, 2 };
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test_container<X, forward_iterator_wrapper> c(seq);
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auto part1 = std::equal_range(c.begin(), c.end(), X{2});
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VERIFY( part1.first != c.end() && part1.second == c.end() );
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VERIFY( part1.first->val == 6 );
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auto part2 = std::equal_range(c.begin(), c.end(), X{2}, std::less<X>{});
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VERIFY( part2.first != c.end() && part1.second == c.end() );
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VERIFY( part2.first->val == 6 );
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auto part3 = std::equal_range(c.begin(), c.end(), X{9});
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VERIFY( part3.first == c.begin() && part3.second != c.end() );
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VERIFY( part3.second->val == 6 );
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auto part4 = std::equal_range(c.begin(), c.end(), X{9}, std::less<X>{});
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VERIFY( part4.first == c.begin() && part4.second != c.end() );
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VERIFY( part4.second->val == 6 );
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}
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int
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main()
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{
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test01();
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}
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