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
// UNSUPPORTED: libcpp-no-concepts
// UNSUPPORTED: gcc-10
// UNSUPPORTED: libcpp-has-no-incomplete-ranges
// constexpr auto size() requires sized_range<V>
// constexpr auto size() const requires sized_range<const V>
#include <ranges>
#include "test_macros.h"
#include "types.h"
template<class T>
concept SizeInvocable = requires(T t) { t.size(); };
constexpr bool test() {
{
std::ranges::transform_view transformView(ContiguousView{}, Increment{});
assert(transformView.size() == 8);
}
{
const std::ranges::transform_view transformView(ContiguousView{globalBuff, 4}, Increment{});
assert(transformView.size() == 4);
}
static_assert(!SizeInvocable<std::ranges::transform_view<ForwardView, Increment>>);
static_assert(SizeInvocable<std::ranges::transform_view<SizedSentinelNotConstView, Increment>>);
static_assert(!SizeInvocable<const std::ranges::transform_view<SizedSentinelNotConstView, Increment>>);
return true;
}
int main(int, char**) {
test();
static_assert(test());
return 0;
}
|
