| 1 | //===----------------------------------------------------------------------===// |
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| 2 | // |
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| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
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| 4 | // See https://llvm.org/LICENSE.txt for license information. |
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| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
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| 6 | // |
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| 7 | //===----------------------------------------------------------------------===// |
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| 8 | |
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| 9 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
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| 10 | |
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| 11 | // iterator() requires default_initializable<W> = default; |
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| 12 | |
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| 13 | #include <ranges> |
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| 14 | #include <cassert> |
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| 15 | |
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| 16 | #include "test_macros.h" |
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| 17 | #include "../types.h" |
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| 18 | |
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| 19 | constexpr bool test() { |
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| 20 | using Iter = std::ranges::iterator_t<std::ranges::iota_view<Int42<DefaultTo42>>>; |
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| 21 | Iter iter; |
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| 22 | assert((*iter).value_ == 42); |
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| 23 | |
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| 24 | return true; |
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| 25 | } |
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| 26 | |
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| 27 | int main(int, char**) { |
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| 28 | test(); |
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| 29 | static_assert(test()); |
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| 30 | |
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| 31 | return 0; |
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| 32 | } |
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| 33 | |
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