75 lines
1.8 KiB
C++
75 lines
1.8 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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// constexpr T* data() noexcept;
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// constexpr const T* data() const noexcept;
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#include <ranges>
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#include <cassert>
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#include "test_macros.h"
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struct Empty {};
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struct BigType { char buffer[64] = {10}; };
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constexpr bool test() {
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{
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auto sv = std::ranges::single_view<int>(42);
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assert(*sv.data() == 42);
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ASSERT_SAME_TYPE(decltype(sv.data()), int*);
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static_assert(noexcept(sv.data()));
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}
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{
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const auto sv = std::ranges::single_view<int>(42);
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assert(*sv.data() == 42);
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ASSERT_SAME_TYPE(decltype(sv.data()), const int*);
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static_assert(noexcept(sv.data()));
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}
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{
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auto sv = std::ranges::single_view<Empty>(Empty());
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assert(sv.data() != nullptr);
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ASSERT_SAME_TYPE(decltype(sv.data()), Empty*);
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}
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{
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const auto sv = std::ranges::single_view<Empty>(Empty());
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assert(sv.data() != nullptr);
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ASSERT_SAME_TYPE(decltype(sv.data()), const Empty*);
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}
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{
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auto sv = std::ranges::single_view<BigType>(BigType());
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assert(sv.data()->buffer[0] == 10);
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ASSERT_SAME_TYPE(decltype(sv.data()), BigType*);
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}
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{
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const auto sv = std::ranges::single_view<BigType>(BigType());
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assert(sv.data()->buffer[0] == 10);
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ASSERT_SAME_TYPE(decltype(sv.data()), const BigType*);
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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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test();
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static_assert(test());
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return 0;
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}
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