ecs/include/ecs/core/utils/storage_cast.h

#pragma once

#include <ecs/config.h>

#include <ecs/core/mp/core/copy_qualifiers.h>

beg_namespace_ecs_core_utils
{

    template <typename T, typename T_storage>
    inline constexpr decltype(auto) storage_cast(T_storage* storage) noexcept
    {
        static_assert(
            sizeof(T_storage) >= sizeof(T),
            "`T_storage` is not big enough for `T`.");

        static_assert(
            alignof(T_storage) >= alignof(T),
            "`T_storage` is not properly aligned for `T`.");

        assert(storage != nullptr);

        using return_type = mp::copy_cv_qualifiers<T, T_storage>;
        return reinterpret_cast<return_type*>(storage);
    }


}
end_namespace_ecs_core_utils