mORMot Open Source

Starkis

Member

From: Up in the space

Registered: 2011-01-16

Posts: 27

checking sets

wonder, how element check in a set is implemented? is it performance wise/optimized? or switch use is a preferred way?

var
    _set : set of byte; //has for example 20 elements
begin
   if value in _set
      then ...

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--- we no need no water, let the ... burn ---

ab

Administrator

From: France

Registered: 2010-06-21

Posts: 14,684

Website

Re: checking sets

you could write

var _set: set of 0..19;

If you know that there is up to 20 items.
It would minimize the _set memory use to the minimum.

AFAIR maximum set size is of 256 items.