1//===----------------------------------------------------------------------===//
2//
3// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4// See https://llvm.org/LICENSE.txt for license information.
5// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6//
7//===----------------------------------------------------------------------===//
8
9// <unordered_map>
10
11// template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>,
12// class Alloc = allocator<pair<const Key, T>>>
13// class unordered_multimap
14
15// iterator insert(const value_type& x);
16
17#include <unordered_map>
18#include <cassert>
19
20#include "test_macros.h"
21#include "min_allocator.h"
22
23template<class Container>
24void do_insert_const_lvalue_test()
25{
26 typedef Container C;
27 typedef typename C::iterator R;
28 typedef typename C::value_type VT;
29 C c;
30 const VT v1(3.5, 3);
31 R r = c.insert(v1);
32 assert(c.size() == 1);
33 assert(r->first == 3.5);
34 assert(r->second == 3);
35
36 const VT v2(3.5, 4);
37 r = c.insert(v2);
38 assert(c.size() == 2);
39 assert(r->first == 3.5);
40 assert(r->second == 4);
41
42 const VT v3(4.5, 4);
43 r = c.insert(v3);
44 assert(c.size() == 3);
45 assert(r->first == 4.5);
46 assert(r->second == 4);
47
48 const VT v4(5.5, 4);
49 r = c.insert(v4);
50 assert(c.size() == 4);
51 assert(r->first == 5.5);
52 assert(r->second == 4);
53}
54
55int main(int, char**)
56{
57 do_insert_const_lvalue_test<std::unordered_multimap<double, int> >();
58#if TEST_STD_VER >= 11
59 {
60 typedef std::unordered_multimap<double, int, std::hash<double>, std::equal_to<double>,
61 min_allocator<std::pair<const double, int>>> C;
62 do_insert_const_lvalue_test<C>();
63 }
64#endif
65
66 return 0;
67}
68

source code of libcxx/test/std/containers/unord/unord.multimap/unord.multimap.modifiers/insert_const_lvalue.pass.cpp