[Freeciv-Dev] Re: (PR#6182) remove some static map-sized arrays

[Raimar Falke <i-freeciv-lists@xxxxxxxxxxxxx>]

On Thu, Sep 18, 2003 at 09:15:10AM -0400, Jason Short wrote:
> Gregory Berkolaiko wrote:
> >On Thu, 18 Sep 2003, Bursig Rafal wrote:
> >
> >
> >>Sorry this msg was rejected by RT then I sent it to list
> >
> >
> >I remember there was a big discussion on this with Ross and Raimar very 
> >active participants.  IIRC there was no verdict as there were argument 
> >both for and against using array[x][y] vs array[x * size + y]
> 
> I prefer the array[x][y] form.  Except that it breaks under 
> gen-topologies and consumes more memory.

The difference is a multiplication with a non-constant vs a memory
access. Which one is faster depends heavily on your architecture. The
determining thing is what Jason mentions above: gen-topologies needs
the 1D array.

        Raimar

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