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
|
//===----------------------------------------------------------------------===//
//
// 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
//
//===----------------------------------------------------------------------===//
// UNSUPPORTED: c++03, c++11, c++14, c++17
// class std::ranges::subrange;
#include <ranges>
#include "types.h"
#include <cassert>
#include "test_macros.h"
#include "test_iterators.h"
static_assert( std::is_constructible_v<ForwardSubrange, ForwardBorrowedRange>); // Default case.
static_assert(!std::is_constructible_v<ForwardSubrange, ForwardRange>); // Not borrowed.
// Iter convertible to sentinel (pointer) type.
static_assert( std::is_constructible_v<ConvertibleForwardSubrange, ConvertibleForwardBorrowedRange>);
// Where neither iter or sentinel are pointers, but they are different.
static_assert( std::is_constructible_v<DifferentSentinelSubrange, ForwardBorrowedRangeDifferentSentinel>);
static_assert( std::is_constructible_v<DifferentSentinelWithSizeMemberSubrange, DifferentSentinelWithSizeMember>);
constexpr bool test() {
ForwardSubrange a{ForwardBorrowedRange()};
assert(base(a.begin()) == globalBuff);
assert(base(a.end()) == globalBuff + 8);
ConvertibleForwardSubrange b{ConvertibleForwardBorrowedRange()};
assert(b.begin() == globalBuff);
assert(b.end() == globalBuff + 8);
DifferentSentinelSubrange c{ForwardBorrowedRangeDifferentSentinel()};
assert(base(c.begin()) == globalBuff);
assert(c.end().value == globalBuff + 8);
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
|
