public boolean contains ( IntBitRelation sub ) { int i ; if ( line . length != sub . line . length ) { return false ; } for ( i = 0 ; i < line . length ; i ++ ) { if ( line [ i ] == null ) { if ( sub . line [ i ] != null ) { return false ; } } else { if ( ( sub . line [ i ] != null ) && ! line [ i ] . containsAll ( sub . line [ i ] ) ) { return false ; } } } return true ; }
Subset test .