Copy size_bytes bytes from src to dst using atomic load operations to load the
element from src so that the behavior of the system is always well defined,
even if there is a well_defined_copy_to operation writing to the memory pointed
to by src concurrent with this well_defined_copy_from operation.
Copy size_bytes bytes from src to dst using atomic store operations to move
the element into dst so that the behavior of the system is always well
defined, even if there is a well_defined_copy_from operation reading from the
memory pointed to by dst concurrent with this well_defined_copy_to operation.