xref: /llvm-project/libcxx/test/std/containers/associative/multimap/multimap.observers/value_comp.pass.cpp (revision 56c8ad237aa4088e61be09ca30830ee704f10018)
1*56c8ad23SKonstantin Boyarinov //===----------------------------------------------------------------------===//
2*56c8ad23SKonstantin Boyarinov //
3*56c8ad23SKonstantin Boyarinov // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4*56c8ad23SKonstantin Boyarinov // See https://llvm.org/LICENSE.txt for license information.
5*56c8ad23SKonstantin Boyarinov // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6*56c8ad23SKonstantin Boyarinov //
7*56c8ad23SKonstantin Boyarinov //===----------------------------------------------------------------------===//
8*56c8ad23SKonstantin Boyarinov 
9*56c8ad23SKonstantin Boyarinov // <map>
10*56c8ad23SKonstantin Boyarinov 
11*56c8ad23SKonstantin Boyarinov // value_compare value_comp() const;
12*56c8ad23SKonstantin Boyarinov 
13*56c8ad23SKonstantin Boyarinov #include <map>
14*56c8ad23SKonstantin Boyarinov #include <cassert>
15*56c8ad23SKonstantin Boyarinov #include <string>
16*56c8ad23SKonstantin Boyarinov 
main(int,char **)17*56c8ad23SKonstantin Boyarinov int main(int, char**) {
18*56c8ad23SKonstantin Boyarinov     typedef std::multimap<int, std::string> map_type;
19*56c8ad23SKonstantin Boyarinov 
20*56c8ad23SKonstantin Boyarinov     map_type m;
21*56c8ad23SKonstantin Boyarinov     map_type::iterator i1 = m.insert(map_type::value_type(1, "abc"));
22*56c8ad23SKonstantin Boyarinov     map_type::iterator i2 = m.insert(map_type::value_type(2, "abc"));
23*56c8ad23SKonstantin Boyarinov 
24*56c8ad23SKonstantin Boyarinov     const map_type& cm = m;
25*56c8ad23SKonstantin Boyarinov 
26*56c8ad23SKonstantin Boyarinov     assert(cm.value_comp()(*i1, *i2));
27*56c8ad23SKonstantin Boyarinov     assert(!cm.value_comp()(*i2, *i1));
28*56c8ad23SKonstantin Boyarinov 
29*56c8ad23SKonstantin Boyarinov     return 0;
30*56c8ad23SKonstantin Boyarinov }
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