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Question CJ H · Nov 27, 2017

"Contains" operation for bitstring

#Caché #ObjectScript

aa=$zwc(411,1,1,3)/*$bit(1,3,5)*/
bb=$zwc(403,1,0,2)/*$bit(1,3)*/

Is there a handy function to test wether one bit string is covered by another one bitstring? For example, "bb" is covered by "aa".

I currently implement this by one AND operation and then do a bitcount, I just want to know any default function is already out there.

Thanks.

Discussion (3)0

Dmitry Maslennikov · Nov 27, 2017

I think bitlogic operations is the best which you can use with bitstring.

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Eduard Lebedyuk Nov 27, 2017 to Dmitry Maslennikov

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Fabian Haupt · Nov 29, 2017

something like this would work:

s contains=($BITLOGIC(aa|bb)=aa)||($BITLOGIC(aa|bb)=bb)

You could also implement it with

w ($ZB(aa,bb,7)=bb)||($ZB(aa,bb,7)=aa)

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