libcxx/test/std/utilities/utility/pairs/pair.astuple/get_rv.pass.cpp

   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 // <utility>
  12
  13 // template <class T1, class T2> struct pair
  14
  15 // template<size_t I, class T1, class T2>
  16 //     typename tuple_element<I, std::pair<T1, T2> >::type&&
  17 //     get(pair<T1, T2>&&);
  18
  19 #include <utility>
  20 #include <memory>
  21 #include <cassert>
  22
  23 #include "test_macros.h"
  24
  25 int main(int, char**)
  26 {
  27     {
  28         typedef std::pair<std::unique_ptr<int>, short> P;
  29         P p(std::unique_ptr<int>(new int(3)), static_cast<short>(4));
  30         std::unique_ptr<int> ptr = std::get<0>(std::move(p));
  31         assert(*ptr == 3);
  32     }
  33
  34   return 0;
  35 }