gdb and iterators

[glen_stark]

Hi.

I hope I'm posting in the correct forum.  I'm debugging some code using 
iterators, and having trouble getting info on where the iterator is 
pointing to, and what.

i get:

1: spli = (t_shapePtrListIter &) @0x226b00: {<_List_iterator_base> = {
    _M_node = 0xa042980}, <No data fields>}

When I type "print spli"

and
Attempt to take contents of a non-pointer value.

for "print *spli".  spli should be an list iterator pointing to pointer 
to a Shape (my own class).  Can someone tell me what's going on?  is 
there a trick to getting iterator info?

thanks,

Glen