| 1 | //===----------------------------------------------------------------------===// |
|---|
| 2 | // |
|---|
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
|---|
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
|---|
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
|---|
| 6 | // |
|---|
| 7 | //===----------------------------------------------------------------------===// |
|---|
| 8 | |
|---|
| 9 | #ifndef LIBCXX_TEST_CONCEPTS_LANG_CONCEPTS_ARITHMETIC_H_ |
|---|
| 10 | #define LIBCXX_TEST_CONCEPTS_LANG_CONCEPTS_ARITHMETIC_H_ |
|---|
| 11 | |
|---|
| 12 | #include <concepts> |
|---|
| 13 | |
|---|
| 14 | // This overload should never be called. It exists solely to force subsumption. |
|---|
| 15 | template <std::integral I> |
|---|
| 16 | constexpr bool CheckSubsumption(I) { |
|---|
| 17 | return false; |
|---|
| 18 | } |
|---|
| 19 | |
|---|
| 20 | // clang-format off |
|---|
| 21 | template <std::integral I> |
|---|
| 22 | requires std::signed_integral<I> && (!std::unsigned_integral<I>) |
|---|
| 23 | constexpr bool CheckSubsumption(I) { |
|---|
| 24 | return std::is_signed_v<I>; |
|---|
| 25 | } |
|---|
| 26 | |
|---|
| 27 | template <std::integral I> |
|---|
| 28 | requires std::unsigned_integral<I> && (!std::signed_integral<I>) |
|---|
| 29 | constexpr bool CheckSubsumption(I) { |
|---|
| 30 | return std::is_unsigned_v<I>; |
|---|
| 31 | } |
|---|
| 32 | // clang-format on |
|---|
| 33 | |
|---|
| 34 | enum ClassicEnum { a, b, c }; |
|---|
| 35 | enum class ScopedEnum { x, y, z }; |
|---|
| 36 | struct EmptyStruct {}; |
|---|
| 37 | |
|---|
| 38 | #endif // LIBCXX_TEST_CONCEPTS_LANG_CONCEPTS_ARITHMETIC_H_ |
|---|
| 39 | |
|---|
