In working on the Tuple pmc (almost done!) I've come
accross a small semantic problem.  I suppose this
might be language level (and thus Larry's turf?), but
how should the VM handle negative indecis?  It already
handles the simple cases when the absolute value of
the index is less than the container size, but it does
no bounds checking beyound that.  For instance:
  new P0, .PerlArray
  set P0, 3

  set P0[0],1
  set P0[1],2
  set P0[2],3

  set I0, P0[-1] #set I0 to 3
  set I0, P0[-10] #segfaults on my machine

My question: do we want the latter case to return an
error, or should we try to DTRT and in the above case
set I0 to 3.  All it takes is changing the if in all
the lines like:
if (ix < 0) ix += SELF->cache.int_val

to a while.  I just wanted to see what the general
consensus is, since I want the Tuple pmc to do the
same thing in this respect as the PerlArray pmc.

Thanks!
Stephen Rawls

__________________________________________________
Do You Yahoo!?
Yahoo! Health - Feel better, live better
http://health.yahoo.com