vector.
Irrespective of the value of
sortorder, no checks are made on the sorted status of
wt, e.g., it is possible to supply
, even when
wt is not sorted. In such cases the
wt array will not be sorted internally, but
g05nec will still work correctly except, possibly, in cases of extreme weight values.
It is usually more efficient to specify a value of
sortorder that is consistent with the status of
wt.