/utilagbtset.txt 
\ Aggregate of BtSet's                                               vandys
only extensions definitions

AgView -> subclass: AgBtSet





















\ AgBtSet fetching aggregate result                                  vandys

AgBtSet -> :method @ ( key agbtset -- agset )   ag>list   AgSet -> new
   { key list agset } list -> size 0 ?do   i list -> @ { btset }
      key btset -> @ if   agset -> agadd   then   loop
   agset method;

AgBtSet -> :method in? ( key agbtset -- ? )   ag>list { key list }
   list -> size 0 ?do   i list -> @ { btset }
      key btset -> in? if   unloop true exit   then
   loop   false method;














\ Aggregate of btlist's... testing                                   vandys
false [if] \ Testing

BtSet -> new constant btl1   BtSet -> new constant btl2
100 1 btl1 -> !   101 1 btl1 -> !   200 2 btl1 -> !   201 2 btl1 -> !
100 1 btl2 -> !   101 1 btl2 -> !   200 2 btl2 -> !   201 2 btl2 -> !
 300 3 btl2 -> !   301 3 btl2 -> !

AgBtSet -> new constant agbt   btl1 agbt -> agadd   btl2 agbt -> agadd

\ agbt -> free

[then] \ Testing