[DGD] & operator

[chris .]

I saw an unfamiliar operator in the kernel lib...it went something like this:
if(sizeof(query_users() & ({str}) ) == 0)
I figure this translates something to effect of 'return to me the number
of instances str appears in array returned by query_users()'
Am i getting it?

Also thanks Felix, returning -1 in query_timeout did the trick.

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