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Diffstat (limited to 'src/libSystem/SystemKit/Verify.h')
| -rw-r--r-- | src/libSystem/SystemKit/Verify.h | 40 |
1 files changed, 40 insertions, 0 deletions
diff --git a/src/libSystem/SystemKit/Verify.h b/src/libSystem/SystemKit/Verify.h new file mode 100644 index 00000000..7d15435a --- /dev/null +++ b/src/libSystem/SystemKit/Verify.h @@ -0,0 +1,40 @@ +/* ======================================== + + Copyright (C) 2025, Amlal El Mahrouss, licensed under the Apache 2.0 license. + + File: Verify.h + Purpose: System Call Interface Verification Layer. + + ======================================== */ + +#pragma once + +#include <libSystem/SystemKit/System.h> + +namespace LibSystem::Verify { +/// @author 0xf00sec, and Amlal El Mahrouss +/// @brief safe cast operator. +template <typename T, typename R = VoidPtr> +inline R sys_safe_cast(const T* ptr) { + _rtl_assert(ptr, "safe cast failed!"); + return static_cast<R>(const_cast<T*>(ptr)); +} + +template <typename T, typename U> +struct must_cast_traits { + constexpr static BOOL value = false; +}; + +template <typename T> +struct must_cast_traits<T, T> { + constexpr static BOOL value = true; +}; + +/// @author Amlal El Mahrouss +/// @brief Safe constexpr cast. +template <typename T, typename R> +inline constexpr R* sys_constexpr_cast(T* ptr) { + static_assert(must_cast_traits<T, R>::value, "constexpr cast failed! types are mismatching!"); + return static_cast<R*>(ptr); +} +} // namespace LibSystem::Verify |
