| 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: no-localization |
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| 10 | // UNSUPPORTED: c++03, c++11, c++14, c++17 |
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| 11 | |
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| 12 | // constexpr default_sentinel_t end() const noexcept; |
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| 13 | |
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| 14 | #include <cassert> |
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| 15 | #include <ranges> |
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| 16 | #include <sstream> |
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| 17 | |
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| 18 | #include "test_macros.h" |
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| 19 | #include "utils.h" |
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| 20 | |
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| 21 | template <class T> |
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| 22 | concept NoexceptEnd = |
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| 23 | requires(T t) { |
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| 24 | { t.end() } noexcept; |
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| 25 | }; |
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| 26 | |
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| 27 | static_assert(NoexceptEnd<std::ranges::istream_view<int>>); |
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| 28 | static_assert(NoexceptEnd<const std::ranges::istream_view<int>>); |
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| 29 | |
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| 30 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
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| 31 | static_assert(NoexceptEnd<std::ranges::wistream_view<int>>); |
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| 32 | static_assert(NoexceptEnd<const std::ranges::wistream_view<int>>); |
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| 33 | #endif |
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| 34 | |
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| 35 | template <class CharT> |
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| 36 | void test() { |
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| 37 | auto iss = make_string_stream<CharT>("12" ); |
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| 38 | std::ranges::basic_istream_view<int, CharT> isv{iss}; |
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| 39 | [[maybe_unused]] std::same_as<std::default_sentinel_t> auto sent = isv.end(); |
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| 40 | } |
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| 41 | |
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| 42 | int main(int, char**) { |
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| 43 | test<char>(); |
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| 44 | #ifndef TEST_HAS_NO_WIDE_CHARACTERS |
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| 45 | test<wchar_t>(); |
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| 46 | #endif |
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| 47 | |
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| 48 | return 0; |
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| 49 | } |
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| 50 | |
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