Re: time values

[Luc Teirlinck]

>From my previous message:

   By the way, your current code seems to assume that
   `visited-file-modtime' is not 0.  Are you sure of that?  Of course,
   you know that (nth 5 attr) is not (0 0), but still.  My patch still
   probably assumes that: can tramp-time-diff handle 0 as an argument?
   Otherwise, it is easy to rewrite the patch to transform 0 into (0 0),
   or maybe an integer N < 2**16 into (0 N), because, theoretically,
   `visited-file-modtime' can return such integers.  (Even though probably
   not in practice).  But maybe `tramp-time-diff' is the place to
   actually do that.

I was confused there for a moment.  If `visited-file-modtime' returns
0, `verify-visited-file-modtime' and hence
`tramp-handle-verify-visited-file-modtime' should return t.
Hence, it has to be handled specially by 
`tramp-handle-verify-visited-file-modtime'.
So the only question is: 
Are you sure that the value can not be 0 at that point?
Your current code assumes it is not.

There probably is no need to worry about positive return values <
2**16, as these are not going to occur in practice.

Sincerely,

Luc.