164 lines
4.1 KiB
C++
164 lines
4.1 KiB
C++
// Copyright (C) 2015-2020 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-do run { target c++14 } }
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#include <map>
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#include <testsuite_hooks.h>
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struct Cmp
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{
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typedef void is_transparent;
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bool operator()(int i, long l) const { return i < l; }
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bool operator()(long l, int i) const { return l < i; }
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bool operator()(int i, int j) const { ++count; return i < j; }
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static int count;
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};
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int Cmp::count = 0;
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using test_type = std::multimap<int, char, Cmp>;
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test_type x{ { 1, '2' }, { 3, '4' }, { 3, '5' } };
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const test_type& cx = x;
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void
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test01()
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{
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Cmp::count = 0;
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auto it = x.find(1L);
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VERIFY( it != x.end() && it->second == '2' );
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it = x.find(2L);
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VERIFY( it == x.end() );
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auto cit = cx.find(3L);
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VERIFY( cit != cx.end() && cit->second == '4' );
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cit = cx.find(2L);
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VERIFY( cit == cx.end() );
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VERIFY( Cmp::count == 0 );
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static_assert(std::is_same<decltype(it), test_type::iterator>::value,
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"find returns iterator");
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static_assert(std::is_same<decltype(cit), test_type::const_iterator>::value,
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"const find returns const_iterator");
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}
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void
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test02()
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{
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Cmp::count = 0;
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auto n = x.count(1L);
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VERIFY( n == 1 );
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n = x.count(2L);
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VERIFY( n == 0 );
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auto cn = cx.count(3L);
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VERIFY( cn == 2 );
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cn = cx.count(2L);
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VERIFY( cn == 0 );
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VERIFY( Cmp::count == 0 );
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}
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void
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test03()
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{
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Cmp::count = 0;
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auto it = x.lower_bound(1L);
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VERIFY( it != x.end() && it->second == '2' );
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it = x.lower_bound(2L);
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VERIFY( it != x.end() && it->second == '4' );
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auto cit = cx.lower_bound(1L);
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VERIFY( cit != cx.end() && cit->second == '2' );
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cit = cx.lower_bound(2L);
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VERIFY( cit != cx.end() && cit->second == '4' );
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VERIFY( Cmp::count == 0 );
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static_assert(std::is_same<decltype(it), test_type::iterator>::value,
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"lower_bound returns iterator");
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static_assert(std::is_same<decltype(cit), test_type::const_iterator>::value,
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"const lower_bound returns const_iterator");
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}
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void
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test04()
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{
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Cmp::count = 0;
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auto it = x.upper_bound(1L);
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VERIFY( it != x.end() && it->second == '4' );
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it = x.upper_bound(3L);
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VERIFY( it == x.end() );
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auto cit = cx.upper_bound(1L);
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VERIFY( cit != cx.end() && cit->second == '4' );
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cit = cx.upper_bound(3L);
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VERIFY( cit == cx.end() );
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VERIFY( Cmp::count == 0 );
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static_assert(std::is_same<decltype(it), test_type::iterator>::value,
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"upper_bound returns iterator");
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static_assert(std::is_same<decltype(cit), test_type::const_iterator>::value,
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"const upper_bound returns const_iterator");
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}
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void
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test05()
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{
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Cmp::count = 0;
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auto it = x.equal_range(1L);
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VERIFY( it.first != it.second && it.first->second == '2' );
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it = x.equal_range(2L);
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VERIFY( it.first == it.second && it.first != x.end() );
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auto cit = cx.equal_range(3L);
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VERIFY( cit.first != cit.second && cit.first->second == '4' );
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VERIFY( std::distance(cit.first, cit.second) == 2 );
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cit = cx.equal_range(2L);
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VERIFY( cit.first == cit.second && cit.first != cx.end() );
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VERIFY( Cmp::count == 0 );
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using pair = std::pair<test_type::iterator, test_type::iterator>;
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static_assert(std::is_same<decltype(it), pair>::value,
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"equal_range returns pair<iterator, iterator>");
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using cpair = std::pair<test_type::const_iterator, test_type::const_iterator>;
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static_assert(std::is_same<decltype(cit), cpair>::value,
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"const equal_range returns pair<const_iterator, const_iterator>");
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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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test02();
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test03();
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test04();
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test05();
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}
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