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 | // UNSUPPORTED: c++03 |
10 | |
11 | // <unordered_map> |
12 | |
13 | // template <class Key, class T, class Hash = hash<Key>, class Pred = equal_to<Key>, |
14 | // class Alloc = allocator<pair<const Key, T>>> |
15 | // class unordered_map |
16 | |
17 | // mapped_type& operator[](const key_type& k); |
18 | |
19 | // https://llvm.org/PR16542 |
20 | |
21 | #include <cstddef> |
22 | #include <tuple> |
23 | #include <unordered_map> |
24 | |
25 | struct my_hash { |
26 | std::size_t operator()(const std::tuple<int, int>&) const { return 0; } |
27 | }; |
28 | |
29 | int main(int, char**) { |
30 | std::unordered_map<std::tuple<int, int>, std::size_t, my_hash> m; |
31 | m[std::make_tuple(args: 2, args: 3)] = 7; |
32 | |
33 | return 0; |
34 | } |
35 | |