e53c461bf3
Note that this class was called just `split_view` in the original One Ranges Proposal and was renamed to `lazy_split_view` by [P2210](https://wg21.link/p2210). Co-authored-by: zoecarver <z.zoelec2@gmail.com> Differential Revision: https://reviews.llvm.org/D107500
79 lines
1.9 KiB
C++
79 lines
1.9 KiB
C++
//===----------------------------------------------------------------------===//
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//
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// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
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// See https://llvm.org/LICENSE.txt for license information.
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// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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//
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//===----------------------------------------------------------------------===//
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// UNSUPPORTED: c++03, c++11, c++14, c++17
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// UNSUPPORTED: libcpp-has-no-incomplete-ranges
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// std::ranges::lazy_split_view::outer-iterator::value_type::end()
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#include <ranges>
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#include <cassert>
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#include "../types.h"
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constexpr bool test() {
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// `View` is a forward range.
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{
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CopyableView input("a");
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// Non-const.
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{
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SplitViewCopyable v(input, "b");
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auto val = *v.begin();
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static_assert(std::same_as<decltype(val.end()), std::default_sentinel_t>);
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static_assert(noexcept(val.end()));
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[[maybe_unused]] auto e = val.end();
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}
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// Const.
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{
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SplitViewCopyable v(input, "b");
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const auto val = *v.begin();
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static_assert(std::same_as<decltype(val.end()), std::default_sentinel_t>);
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static_assert(noexcept(val.end()));
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[[maybe_unused]] auto e = val.end();
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}
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}
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// `View` is an input range.
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{
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InputView input("a");
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// Non-const.
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{
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SplitViewInput v(input, 'b');
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auto val = *v.begin();
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static_assert(std::same_as<decltype(val.end()), std::default_sentinel_t>);
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static_assert(noexcept(val.end()));
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[[maybe_unused]] auto e = val.end();
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}
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// Const.
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{
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SplitViewInput v(input, 'b');
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const auto val = *v.begin();
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static_assert(std::same_as<decltype(val.end()), std::default_sentinel_t>);
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static_assert(noexcept(val.end()));
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[[maybe_unused]] auto e = val.end();
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}
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}
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return true;
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}
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int main(int, char**) {
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assert(test());
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static_assert(test());
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return 0;
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}
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