deallocating associative array memory in awk

[Mitchel Wyle]

Is there some way to deallocate assoc arrays in old (Sun OS 4.0.3) awk?

a["foo"] = 1
...
for (w in a)
  free(a[w]) ????

Thanks,
-Mitchell F. Wyle
Institut fuer Informationssysteme         wyle at inf.ethz.ch 
ETH Zentrum / 8092 Zurich, Switzerland    +41 1 256 5237