6900df37d2
Since we officially don't support several older compilers now, we can drop a lot of the markup in the test suite. This helps keep the test suite simple and makes sure that UNSUPPORTED annotations don't rot. This is the first patch of a series that will remove annotations for compilers that are now unsupported. Differential Revision: https://reviews.llvm.org/D107787
68 lines
2.5 KiB
C++
68 lines
2.5 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-no-concepts
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// UNSUPPORTED: libcpp-has-no-incomplete-ranges
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// common_view() requires default_initializable<V> = default;
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#include <ranges>
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#include <cassert>
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#include "test_iterators.h"
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#include "test_range.h"
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int globalBuffer[4] = {1,2,3,4};
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struct ContiguousView : std::ranges::view_base {
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int *ptr_;
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constexpr ContiguousView(int* ptr) : ptr_(ptr) {}
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constexpr ContiguousView(ContiguousView&&) = default;
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constexpr ContiguousView& operator=(ContiguousView&&) = default;
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friend constexpr int* begin(ContiguousView& view) { return view.ptr_; }
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friend constexpr int* begin(ContiguousView const& view) { return view.ptr_; }
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friend constexpr sentinel_wrapper<int*> end(ContiguousView& view) {
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return sentinel_wrapper<int*>{view.ptr_ + 8};
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}
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friend constexpr sentinel_wrapper<int*> end(ContiguousView const& view) {
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return sentinel_wrapper<int*>{view.ptr_ + 8};
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}
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};
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struct CopyableView : std::ranges::view_base {
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int *ptr_;
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constexpr CopyableView(int* ptr = globalBuffer) : ptr_(ptr) {}
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friend constexpr int* begin(CopyableView& view) { return view.ptr_; }
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friend constexpr int* begin(CopyableView const& view) { return view.ptr_; }
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friend constexpr sentinel_wrapper<int*> end(CopyableView& view) {
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return sentinel_wrapper<int*>{view.ptr_ + 4};
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}
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friend constexpr sentinel_wrapper<int*> end(CopyableView const& view) {
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return sentinel_wrapper<int*>{view.ptr_ + 4};
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}
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};
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struct DefaultConstructibleView : std::ranges::view_base {
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DefaultConstructibleView();
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friend int* begin(DefaultConstructibleView& view);
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friend int* begin(DefaultConstructibleView const& view);
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friend sentinel_wrapper<int*> end(DefaultConstructibleView& view);
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friend sentinel_wrapper<int*> end(DefaultConstructibleView const& view);
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};
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int main(int, char**) {
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static_assert(!std::default_initializable<std::ranges::common_view<ContiguousView>>);
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static_assert( std::default_initializable<std::ranges::common_view<DefaultConstructibleView>>);
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std::ranges::common_view<CopyableView> common;
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assert(*common.begin() == 1);
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return 0;
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}
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