| // Copyright 2023 The ChromiumOS Authors |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #ifndef LIBHWSEC_FOUNDATION_UTILITY_CONCEPTS_H_ |
| #define LIBHWSEC_FOUNDATION_UTILITY_CONCEPTS_H_ |
| |
| #include <concepts> |
| #include <type_traits> |
| #include <utility> |
| |
| namespace hwsec_foundation { |
| |
| template <typename T> |
| concept Dereferencable = requires(T t) { *t; }; |
| |
| // A helper to check an type has kMaxValue or not. |
| template <typename T> |
| concept EnumTypeWithMaxValue = std::is_enum_v<T>&& |
| requires(T) |
| { |
| { T::kMaxValue } -> std::same_as<T>; |
| }; |
| |
| template <typename T> |
| concept EnumTypeWithoutMaxValue = std::is_enum_v<T> && !EnumTypeWithMaxValue<T>; |
| |
| } // namespace hwsec_foundation |
| |
| #endif // LIBHWSEC_FOUNDATION_UTILITY_CONCEPTS_H_ |
