How are files moved between directories at the physical level?

Question

Operating Systems

In general, the C++ STL Filesystem simply does not have a function to move files between directories, such as fs::move(). And this, in general, is not a problem, because you can copy and delete. But the point is that I always thought that at the OS level, the movement is not physical, but simply the pointer changes (label, record ... I don’t know how to do it right). Is this just STL cant, or is relocation really achieved by copying and deleting?

Answer 1

At the OS level, you need to find out if the file was moved within a partition, or between two partitions.
If within the same section, then the path to the file simply changes. If between partitions, then copying with deletion is performed.