A tool for deriving PKG packet encryption keys for ps4 written in c++
| 1 | // SPDX-FileCopyrightText: Copyright 2024 shadPS4 Emulator Project |
| 2 | // SPDX-License-Identifier: GPL-2.0-or-later |
| 3 | |
| 4 | #pragma once |
| 5 | |
| 6 | /** |
| 7 | * @brief A template class that encapsulates a fixed, compile-time constant value. |
| 8 | * |
| 9 | * @tparam T The type of the value. |
| 10 | * @tparam Value The fixed value of type T. |
| 11 | * |
| 12 | * This class provides a way to encapsulate a value that is constant and known at compile-time. |
| 13 | * The value is stored as a private member and cannot be changed. Any attempt to assign a new |
| 14 | * value to an object of this class will reset it to the fixed value. |
| 15 | */ |
| 16 | template <typename T, T Value> |
| 17 | class FixedValue { |
| 18 | T m_value{Value}; |
| 19 | |
| 20 | public: |
| 21 | constexpr FixedValue() = default; |
| 22 | |
| 23 | constexpr explicit(false) operator T() const { |
| 24 | return m_value; |
| 25 | } |
| 26 | |
| 27 | FixedValue& operator=(const T&) { |
| 28 | m_value = Value; |
| 29 | return *this; |
| 30 | } |
| 31 | FixedValue& operator=(T&&) noexcept { |
| 32 | m_value = {Value}; |
| 33 | return *this; |
| 34 | } |
| 35 | }; |
| 36 |