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52066eae | 1 | // { dg-do compile { target c++11 } } |
71743a68 | 2 | // |
818ab71a | 3 | // Copyright (C) 2011-2016 Free Software Foundation, Inc. |
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4 | // |
5 | // This file is part of the GNU ISO C++ Library. This library is free | |
6 | // software; you can redistribute it and/or modify it under the | |
7 | // terms of the GNU General Public License as published by the | |
8 | // Free Software Foundation; either version 3, or (at your option) | |
9 | // any later version. | |
71743a68 | 10 | // |
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11 | // This library is distributed in the hope that it will be useful, |
12 | // but WITHOUT ANY WARRANTY; without even the implied warranty of | |
13 | // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
14 | // GNU General Public License for more details. | |
71743a68 | 15 | // |
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16 | // You should have received a copy of the GNU General Public License along |
17 | // with this library; see the file COPYING3. If not see | |
18 | // <http://www.gnu.org/licenses/>. | |
19 | ||
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20 | // NB: Don't include any other headers in this file. |
21 | // LWG 2212 requires <array> to define tuple_element<cv T> specializations. | |
bfef3a71 | 22 | #include <array> |
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23 | |
24 | void | |
25 | test01() | |
a9260b7e | 26 | { |
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27 | using std::array; |
28 | using std::tuple_element; | |
29 | // This relies on the fact that <utility> includes <type_traits>: | |
30 | using std::is_same; | |
71743a68 | 31 | |
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32 | const size_t len = 3; |
33 | typedef array<int, len> array_type; | |
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34 | |
35 | static_assert(is_same<tuple_element<0, array_type>::type, int>::value, "" ); | |
36 | static_assert(is_same<tuple_element<1, array_type>::type, int>::value, "" ); | |
37 | static_assert(is_same<tuple_element<2, array_type>::type, int>::value, ""); | |
38 | ||
39 | static_assert(is_same<tuple_element<0, const array_type>::type, | |
40 | const int>::value, ""); | |
41 | static_assert(is_same<tuple_element<1, const array_type>::type, | |
42 | const int>::value, ""); | |
43 | static_assert(is_same<tuple_element<2, const array_type>::type, | |
44 | const int>::value, ""); | |
45 | ||
46 | static_assert(is_same<tuple_element<0, volatile array_type>::type, | |
47 | volatile int>::value, ""); | |
48 | static_assert(is_same<tuple_element<1, volatile array_type>::type, | |
49 | volatile int>::value, ""); | |
50 | static_assert( (is_same<tuple_element<2, volatile array_type>::type, | |
4ed6e524 | 51 | volatile int>::value == true), "" ); |
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52 | |
53 | static_assert(is_same<tuple_element<0, const volatile array_type>::type, | |
54 | const volatile int>::value, ""); | |
55 | static_assert(is_same<tuple_element<1, const volatile array_type>::type, | |
56 | const volatile int>::value, ""); | |
57 | static_assert(is_same<tuple_element<2, const volatile array_type>::type, | |
58 | const volatile int>::value, ""); | |
71743a68 | 59 | } |
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60 | |
61 | int main() | |
62 | { | |
71743a68 | 63 | test01(); |
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64 | return 0; |
65 | } |