Fwd: Re: [Libreoffice-commits] core.git: Move string hash function into String class.

[Stephan Bergmann]

On 02/14/2014 03:24 PM, Muthu Subramanian wrote:
> How else would we build a hash value without too much work?

If you have a structure consisting of multiple parts, compute hash 
values for the individual parts and fold them into a single hash value 
via some suitable function, like f(x, y) = px + y for some prime p.

> I have added a hash for SfxItemSet as well recently. (Next step would
> be to reuse that hash in SdPage, of course).

...which I had just identified as dead code.  ;)  Please never introduce 
unused code.  (And those stringify/hashCode functions apparently also 
don't need to be virtual.)

Stephan