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 typedef Container C;
26 typedef typename C::iterator R;
27 typedef typename C::value_type VT;
28 C c;
29 const VT v1(3.5, 3);
30 R r = c.insert(v1);
31 assert(c.size() == 1);
32 assert(r->first == 3.5);
33 assert(r->second == 3);
34
35 const VT v2(3.5, 4);
36 r = c.insert(v2);
37 assert(c.size() == 2);
38 assert(r->first == 3.5);
39 assert(r->second == 4);
40
41 const VT v3(4.5, 4);
42 r = c.insert(v3);
43 assert(c.size() == 3);
44 assert(r->first == 4.5);
45 assert(r->second == 4);
46
47 const VT v4(5.5, 4);
48 r = c.insert(v4);
49 assert(c.size() == 4);
50 assert(r->first == 5.5);
51 assert(r->second == 4);
52}
53
54int main(int, char**) {
55 do_insert_const_lvalue_test<std::unordered_multimap<double, int> >();
56#if TEST_STD_VER >= 11
57 {
58 typedef std::unordered_multimap<double,
59 int,
60 std::hash<double>,
61 std::equal_to<double>,
62 min_allocator<std::pair<const double, int>>>
63 C;
64 do_insert_const_lvalue_test<C>();
65 }
66#endif
67
68 return 0;
69}
70

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