I'm going to add a menu to import (and eventually export) dives, and so
we'd like to be able to start out with no dives at all. Right now we
croak if that happens - it's not like the code has been written with
actual end users in mind.
So start cleaning things up. First make the 'current_dive' macro work
right even for invalid dives.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The name is a string containint date, time, depth and length. So it's
useful even with nothing else going on.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
The dive parser should eventually be just a part of the program, not the
whole thing. So start preparing for that.
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
