1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
|
//===----------------------------------------------------------------------===//
//
// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
// See https://llvm.org/LICENSE.txt for license information.
// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
//
//===----------------------------------------------------------------------===//
// <array>
// tuple_element<I, array<T, N> >::type
#include <array>
#include <type_traits>
template <class T>
void test()
{
{
typedef T Exp;
typedef std::array<T, 3> C;
static_assert((std::is_same<typename std::tuple_element<0, C>::type, Exp>::value), "");
static_assert((std::is_same<typename std::tuple_element<1, C>::type, Exp>::value), "");
static_assert((std::is_same<typename std::tuple_element<2, C>::type, Exp>::value), "");
}
{
typedef T const Exp;
typedef std::array<T, 3> const C;
static_assert((std::is_same<typename std::tuple_element<0, C>::type, Exp>::value), "");
static_assert((std::is_same<typename std::tuple_element<1, C>::type, Exp>::value), "");
static_assert((std::is_same<typename std::tuple_element<2, C>::type, Exp>::value), "");
}
{
typedef T volatile Exp;
typedef std::array<T, 3> volatile C;
static_assert((std::is_same<typename std::tuple_element<0, C>::type, Exp>::value), "");
static_assert((std::is_same<typename std::tuple_element<1, C>::type, Exp>::value), "");
static_assert((std::is_same<typename std::tuple_element<2, C>::type, Exp>::value), "");
}
{
typedef T const volatile Exp;
typedef std::array<T, 3> const volatile C;
static_assert((std::is_same<typename std::tuple_element<0, C>::type, Exp>::value), "");
static_assert((std::is_same<typename std::tuple_element<1, C>::type, Exp>::value), "");
static_assert((std::is_same<typename std::tuple_element<2, C>::type, Exp>::value), "");
}
}
int main()
{
test<double>();
test<int>();
}
|
