| 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, c++20 |
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| 10 | |
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| 11 | // constexpr iterator& operator++(); |
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| 12 | // constexpr void operator++(int); |
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| 13 | |
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| 14 | #include <ranges> |
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| 15 | #include <concepts> |
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| 16 | #include <cassert> |
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| 17 | |
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| 18 | constexpr bool test() { |
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| 19 | using Iter = std::ranges::iterator_t<std::ranges::repeat_view<int>>; |
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| 20 | std::ranges::repeat_view<int> rv(10); |
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| 21 | using Iter = std::ranges::iterator_t<std::ranges::repeat_view<int>>; |
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| 22 | auto iter = rv.begin(); |
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| 23 | |
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| 24 | assert(iter++ == rv.begin()); |
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| 25 | assert(++iter == rv.begin() + 2); |
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| 26 | |
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| 27 | static_assert(std::same_as<decltype(iter++), Iter>); |
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| 28 | static_assert(std::same_as<decltype(++iter), Iter&>); |
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| 29 | |
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| 30 | return true; |
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| 31 | } |
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| 32 | |
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| 33 | int main(int, char**) { |
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| 34 | test(); |
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| 35 | static_assert(test()); |
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| 36 | |
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| 37 | return 0; |
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| 38 | } |
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| 39 | |
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