Leopold Toetsch writes: > Pete Lomax wrote: > > >My question is: What can I do to P4 entries to mark them as available > >for re-use? > > close: > P0=P4[I1] > close P0 > # mark slot as free > null P5 > P4[I1]=P5 # set to NULL > ret > > you can test the entry by: > > set P0, P4[I1] > isnull P0, is_close > # > is_close:
When writing one of my pet languages, I found a need (or a want) to replace the contents of a PMC with a different PMC. To accomplish this, I wrote an op that memcpied the header of the source into the header of the destination. It worked. (Maybe a simple struct assignment would work, too) Is this a safe thing to do? If so, I think it deserves core ophood. Luke > >Regards, > >Pete > > leo >
