Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 1 | //===----------------------------------------------------------------------===// |
| 2 | // |
Howard Hinnant | f5256e1 | 2010-05-11 21:36:01 +0000 | [diff] [blame] | 3 | // The LLVM Compiler Infrastructure |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 4 | // |
Howard Hinnant | b64f8b0 | 2010-11-16 22:09:02 +0000 | [diff] [blame] | 5 | // This file is dual licensed under the MIT and the University of Illinois Open |
| 6 | // Source Licenses. See LICENSE.TXT for details. |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 7 | // |
| 8 | //===----------------------------------------------------------------------===// |
| 9 | |
| 10 | // <array> |
| 11 | |
| 12 | // template <size_t I, class T, size_t N> T& get(array<T, N>& a); |
| 13 | |
| 14 | #include <array> |
| 15 | #include <cassert> |
| 16 | |
Eric Fiselier | 02bb4bd | 2015-07-18 23:56:04 +0000 | [diff] [blame] | 17 | #include "test_macros.h" |
| 18 | |
Dan Albert | 1d4a1ed | 2016-05-25 22:36:09 -0700 | [diff] [blame^] | 19 | #include "../suppress_array_warnings.h" |
Eric Fiselier | 02bb4bd | 2015-07-18 23:56:04 +0000 | [diff] [blame] | 20 | |
| 21 | |
| 22 | #if TEST_STD_VER > 11 |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 23 | struct S { |
| 24 | std::array<int, 3> a; |
| 25 | int k; |
| 26 | constexpr S() : a{1,2,3}, k(std::get<2>(a)) {} |
Eric Fiselier | 02bb4bd | 2015-07-18 23:56:04 +0000 | [diff] [blame] | 27 | }; |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 28 | |
| 29 | constexpr std::array<int, 2> getArr () { return { 3, 4 }; } |
| 30 | #endif |
| 31 | |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 32 | int main() |
| 33 | { |
| 34 | { |
| 35 | typedef double T; |
| 36 | typedef std::array<T, 3> C; |
| 37 | C c = {1, 2, 3.5}; |
| 38 | std::get<1>(c) = 5.5; |
| 39 | assert(c[0] == 1); |
| 40 | assert(c[1] == 5.5); |
| 41 | assert(c[2] == 3.5); |
| 42 | } |
Eric Fiselier | 02bb4bd | 2015-07-18 23:56:04 +0000 | [diff] [blame] | 43 | #if TEST_STD_VER > 11 |
Marshall Clow | 8fc4f5a | 2013-07-17 18:25:36 +0000 | [diff] [blame] | 44 | { |
| 45 | typedef double T; |
| 46 | typedef std::array<T, 3> C; |
| 47 | constexpr C c = {1, 2, 3.5}; |
| 48 | static_assert(std::get<0>(c) == 1, ""); |
| 49 | static_assert(std::get<1>(c) == 2, ""); |
| 50 | static_assert(std::get<2>(c) == 3.5, ""); |
| 51 | } |
| 52 | { |
| 53 | static_assert(S().k == 3, ""); |
| 54 | static_assert(std::get<1>(getArr()) == 4, ""); |
| 55 | } |
| 56 | #endif |
Howard Hinnant | bc8d3f9 | 2010-05-11 19:42:16 +0000 | [diff] [blame] | 57 | } |