Eric Fiselier | 199bee0 | 2015-12-18 00:36:55 +0000 | [diff] [blame] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
| 3 | // The LLVM Compiler Infrastructure |
| 4 | // |
| 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
| 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // <array> |
| 11 | |
| 12 | // template <size_t I, class T, size_t N> const T&& get(const array<T, N>&& a); |
| 13 | |
| 14 | // UNSUPPORTED: c++98, c++03 |
| 15 | |
| 16 | #include <array> |
| 17 | #include <memory> |
| 18 | #include <type_traits> |
| 19 | #include <utility> |
| 20 | #include <cassert> |
| 21 | |
| 22 | #include "test_macros.h" |
| 23 | |
| 24 | // std::array is explicitly allowed to be initialized with A a = { init-list };. |
| 25 | // Disable the missing braces warning for this reason. |
| 26 | #include "disable_missing_braces_warning.h" |
| 27 | |
| 28 | int main() |
| 29 | { |
| 30 | |
| 31 | { |
| 32 | typedef std::unique_ptr<double> T; |
| 33 | typedef std::array<T, 1> C; |
| 34 | const C c = {std::unique_ptr<double>(new double(3.5))}; |
| 35 | static_assert(std::is_same<const T&&, decltype(std::get<0>(std::move(c)))>::value, ""); |
| 36 | static_assert(noexcept(std::get<0>(std::move(c))), ""); |
| 37 | const T&& t = std::get<0>(std::move(c)); |
| 38 | assert(*t == 3.5); |
| 39 | } |
| 40 | |
| 41 | #if TEST_STD_VER > 11 |
| 42 | { |
| 43 | typedef double T; |
| 44 | typedef std::array<T, 3> C; |
| 45 | constexpr const C c = {1, 2, 3.5}; |
| 46 | static_assert(std::get<0>(std::move(c)) == 1, ""); |
| 47 | static_assert(std::get<1>(std::move(c)) == 2, ""); |
| 48 | static_assert(std::get<2>(std::move(c)) == 3.5, ""); |
| 49 | } |
| 50 | #endif |
| 51 | } |