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// <utility>
10
11// template <class T1, class T2> struct pair
12
13// template<size_t I, class T1, class T2>
14// const typename tuple_element<I, std::pair<T1, T2> >::type&
15// get(const pair<T1, T2>&);
16
17#include <utility>
18#include <cassert>
19
20#include "test_macros.h"
21
22int main(int, char**)
23{
24 {
25 typedef std::pair<int, short> P;
26 const P p(3, static_cast<short>(4));
27 assert(std::get<0>(p) == 3);
28 assert(std::get<1>(p) == 4);
29 }
30
31#if TEST_STD_VER > 11
32 {
33 typedef std::pair<int, short> P;
34 constexpr P p1(3, static_cast<short>(4));
35 static_assert(std::get<0>(p1) == 3, "");
36 static_assert(std::get<1>(p1) == 4, "");
37 }
38#endif
39
40 return 0;
41}
42

source code of libcxx/test/std/utilities/utility/pairs/pair.astuple/get_const.pass.cpp