1 //===----------------------------------------------------------------------===//
2 //
3 // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
4 // See https://llvm.org/LICENSE.txt for license information.
5 // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
6 //
7 //===----------------------------------------------------------------------===//
8
9 // UNSUPPORTED: c++03, c++11, c++14, c++17
10 // UNSUPPORTED: libcpp-has-no-incomplete-ranges
11
12 // explicit outer-iterator::value_type::value_type(outer-iterator i)
13
14 #include <ranges>
15
16 #include <cassert>
17 #include "../types.h"
18
19 // Verify that the constructor is `explicit`.
20 static_assert(!std::is_convertible_v<OuterIterForward, ValueTypeForward>);
21 static_assert(!std::is_convertible_v<OuterIterInput, ValueTypeInput>);
22
test()23 constexpr bool test() {
24 // `View` is a forward range.
25 {
26 CopyableView input = "a";
27 SplitViewCopyable v(input, "b");
28 ValueTypeCopyable val(v.begin());
29 assert(val.begin().base() == input.begin());
30 }
31
32 // `View` is an input range.
33 {
34 InputView input = "a";
35 SplitViewInput v(input, 'b');
36 ValueTypeInput val(v.begin());
37 assert(*val.begin().base() == *input.begin());
38 }
39
40 return true;
41 }
42
main(int,char **)43 int main(int, char**) {
44 test();
45 static_assert(test());
46
47 return 0;
48 }
49