close ¶The close builtin allows you to destroy IO spaces, closing the
underlying IO device. The prototype is:
fun close = (int<32> ios) void
where ios is some previously created IO space. All pending data is written to the underlying IO device.
If the IO space specified to close doesn’t exist then an
E_no_ios exception is raised.
If errors occurred while closing the IO space, then E_ios
exception is raised.