[Freeciv-Dev] Re: (PR#2370) Path finding

[Raimar Falke <rf13@xxxxxxxxxxxxxxxxx>]

On Fri, Feb 21, 2003 at 11:19:13PM +0000, Gregory Berkolaiko wrote:
> Quoting Raimar Falke <rf13@xxxxxxxxxxxxxxxxx>:
> 
> > On Fri, Feb 21, 2003 at 10:58:51PM +0000, Gregory Berkolaiko wrote:
> > > Quoting Raimar Falke <rf13@xxxxxxxxxxxxxxxxx>:
> > > 
> > > > > Give me a problem that requires "known" here and cannot be solved by
> > > > existing
> > > > > call-backs and then we can negotiate.
> > > > 
> > > > This one extra argument is one extra push for the caller. Thats it. No
> > > > other cost. gcc doesn't pop but just adjusts the %esp directly. And it
> > > > has no influence on the called function (if the function doesn't use
> > > > it). I expect that a push is fast. Very fast since you need it
> > > > everytime you call a function.
> > > 
> > > Don't push it on me, man!  Since you are not giving me the example
> > > that needs it, we will assume that none such exists.
> > 
> > That callback were your idea. I have no code which needs this callback
> > at all.
> > 
> > But your point (add it if current code needs it) is mood. This way we
> > wouldn't have EC, is_pos_dangerous and TM_*_TIME.

> Not true.  I am not asking for existing code / problem.  I am asking
> for any (future) situation where we would need this.  And I can give
> you situations (as you can do yourself) where there is need for EC,
> is_pos_dangerous and TM_*_TIME.

That would a situation where depending on the known state of the
target of the step the MC of the step is changed. Any sane person
would not attach this to a step but to the tile and so use EC. I agree
that the usage of known is very unlikely.

        Raimar

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