71909de374
Adds a new CMake option to disable the usage of incomplete headers. These incomplete headers are not guaranteed to be ABI stable. This option is intended to be used by vendors so they can avoid their users from code that's not ready for production usage. The option is enabled by default. Differential Revision: https://reviews.llvm.org/D106763
47 lines
1.2 KiB
C++
47 lines
1.2 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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// <ranges>
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// template<class T>
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// concept view = ...;
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#include <ranges>
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#include "test_macros.h"
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struct View : std::ranges::view_base {
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View() = default;
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View(View&&) = default;
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View& operator=(View&&) = default;
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friend int* begin(View&);
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friend int* begin(View const&);
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friend int* end(View&);
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friend int* end(View const&);
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};
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namespace subsume_range {
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template <std::ranges::view>
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constexpr bool test() { return true; }
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template <std::ranges::range>
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constexpr bool test() { return false; }
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static_assert(test<View>());
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}
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namespace subsume_movable {
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template <std::ranges::view>
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constexpr bool test() { return true; }
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template <std::movable>
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constexpr bool test() { return false; }
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static_assert(test<View>());
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}
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