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#ifndef TEACHOS_MEMORY_ASM_POINTER_HPP
#define TEACHOS_MEMORY_ASM_POINTER_HPP
namespace teachos::memory
{
/**
* @brief A pointer that is defined in some assembly source file.
*
* @tparam Type The type of the pointer
* @since 0.0.1
*/
template<typename Type>
struct asm_pointer
{
/**
* @brief The type of the underlying pointer.
*/
using pointer = Type *;
/**
* @brief Construct a new asm_pointer for a given assembly-defined pointer.
*
* @param pointer A pointer defined in assembly.
*/
constexpr asm_pointer(Type *& pointer)
: m_pointer{&pointer}
{
// Nothing to do
}
/**
* @brief Access the underlying pointer.
*
* @return The pointer wrapped by this asm_pointer.
*/
auto constexpr operator*() -> pointer & { return *m_pointer; }
/**
* @brief Access the underlying pointer.
*
* @return The pointer wrapped by this asm_pointer.
*/
auto constexpr operator*() const -> pointer const & { return *m_pointer; }
private:
pointer * m_pointer;
};
/**
* @copydoc asm_pointer
*
* @note This specialization allows the use of this type for pointers to constant data.
* @since 0.0.1
*/
template<typename Type>
struct asm_pointer<Type const>
{
/** @copydoc asm_pointer<Type>::asm_pointer */
constexpr asm_pointer(Type const & pointer)
: m_pointer{&pointer}
{
}
/** @copydoc asm_pointer<Type>::operator*() */
auto constexpr operator*() -> Type const & { return *m_pointer; }
/** @copydoc asm_pointer<Type>::operator*() const */
auto constexpr operator*() const -> Type const & { return *m_pointer; }
private:
Type const * m_pointer;
};
} // namespace teachos::memory
#endif // TEACHOS_MEMORY_ASM_POINTER_HPP
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