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git.ipfire.org Git - thirdparty/gcc.git/blob - libstdc++-v3/testsuite/23_containers/map/modifiers/merge.cc
1 // Copyright (C) 2016-2020 Free Software Foundation, Inc.
3 // This file is part of the GNU ISO C++ Library. This library is free
4 // software; you can redistribute it and/or modify it under the
5 // terms of the GNU General Public License as published by the
6 // Free Software Foundation; either version 3, or (at your option)
9 // This library is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License along
15 // with this library; see the file COPYING3. If not see
16 // <http://www.gnu.org/licenses/>.
18 // { dg-options "-std=gnu++17" }
19 // { dg-do run { target c++17 } }
23 #include <testsuite_hooks.h>
25 using test_type
= std::map
<int, int>;
30 const test_type c0
{ {1, 10}, {2, 20}, {3, 30} };
31 test_type c1
= c0
, c2
= c0
;
42 c2
.merge(std::move(c1
));
50 const test_type c0
{ {1, 10}, {2, 20}, {3, 30} };
52 std::map
<int, int, std::less
<>> c2( c0
.begin(), c0
.end() );
56 VERIFY( std::equal(c2
.begin(), c2
.end(), c0
.begin(), c0
.end()) );
63 c2
.merge(std::move(c1
));
65 VERIFY( std::equal(c2
.begin(), c2
.end(), c0
.begin(), c0
.end()) );
71 const test_type c0
{ {1, 10}, {2, 20}, {3, 30} };
73 std::map
<int, int, std::greater
<>> c2( c0
.begin(), c0
.end() );
77 VERIFY( std::equal(c2
.rbegin(), c2
.rend(), c0
.begin(), c0
.end()) );
86 VERIFY( std::equal(c2
.rbegin(), c2
.rend(), c0
.begin(), c0
.end()) );
88 c1
.merge(std::move(c2
));
96 const test_type c0
{ {1, 10}, {2, 20}, {3, 30} };
98 std::multimap
<int, int, std::greater
<>> c2( c0
.begin(), c0
.end() );
102 VERIFY( std::equal(c2
.rbegin(), c2
.rend(), c0
.begin(), c0
.end()) );
107 VERIFY( c2
.empty() );
110 VERIFY( c1
.empty() );
111 VERIFY( std::equal(c2
.rbegin(), c2
.rend(), c0
.begin(), c0
.end()) );
115 VERIFY( c1
.empty() );
116 VERIFY( c2
.size() == (2 * c0
.size()) );
117 VERIFY( std::is_sorted(c2
.begin(), c2
.end(), c2
.value_comp()) );
121 VERIFY( std::equal(c2
.rbegin(), c2
.rend(), c0
.begin(), c0
.end()) );
123 c1
.merge(std::move(c2
));
125 VERIFY( std::equal(c2
.rbegin(), c2
.rend(), c0
.begin(), c0
.end()) );
128 c1
.merge(std::move(c2
));
130 VERIFY( c2
.empty() );