in reply to print or die?
I think there may be a better way to do this (other more knowledgeable monks here would chime in) - but have you looked at sigtrap pragma? Adding a die to every print seems kludgy to me.
Normally, when you have a full disk, you'd encounter a ENOSPC on *nix systems. If you're specifically looking for this signal, you can install an handler to trap it and break out. Otherwise, you can use a 'catchall' untrapped handler on other signals (Do note that this can modify behaviour on other signals that are supposed to do their work :-)).
There may well be a better way to do this...