#ifndef CHECKED_CAST_HH

#define CHECKED_CAST_HH

/**

 * Based on checked_cast implementation from the book:

 *    C++ Coding Standard

 *    item 93: Avoid using static_cast on pointers

 */

#include <cassert>

#include <type_traits>

template<typename TO, typename FROM>

[[nodiscard]] constexpr TO checked_cast(FROM* from)

{

	assert(dynamic_cast<TO>(from) == static_cast<TO>(from));

	return static_cast<TO>(from);

}

template<typename TO, typename FROM>

[[nodiscard]] constexpr TO checked_cast(FROM& from)

{

	using TO_PTR = std::remove_reference_t<TO>*;

	TO_PTR* suppress_warning = nullptr; (void)suppress_warning;

	assert(dynamic_cast<TO_PTR>(&from) == static_cast<TO_PTR>(&from));

	return static_cast<TO>(from);

}

#endif