libcxx/test/std/containers/sequences/array/array.tuple/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 // <array>
  10
  11 // template <size_t I, class T, size_t N> T&& get(array<T, N>&& a);
  12
  13 // UNSUPPORTED: c++03
  14
  15 #include <array>
  16 #include <memory>
  17 #include <utility>
  18 #include <cassert>
  19
  20 // std::array is explicitly allowed to be initialized with A a = { init-list };.
  21 // Disable the missing braces warning for this reason.
  22 #include "test_macros.h"
  23 #include "disable_missing_braces_warning.h"
  24
  25 int main(int, char**)
  26 {
  27
  28     {
  29         typedef std::unique_ptr<double> T;
  30         typedef std::array<T, 1> C;
  31         C c = {std::unique_ptr<double>(new double(3.5))};
  32         T t = std::get<0>(std::move(c));
  33         assert(*t == 3.5);
  34     }
  35
  36     return 0;
  37 }