>>> The function alloc_sizeof( rstring<RepType> const &s ) does not count the
>> book-keeping overhead for the various kinds of strings. For example, the
>> default rep (which is used for zstrings) adds 12 bytes oberhead (on 32-bit
>> I changed it to:
>> return s.capacity() + (s.is_shared() ? 0 : sizeof( RepType ));
> This is fine with me, but there are many other things that are shared and yet
> their sharing is not taken into account (e.g. qname items in the qname pool,
> or atomic items shared among the nodes of copied xml trees). I think we
> should have a consistent solution about what to do with "shared" things.
> There are several options, but I will let Matthias decide about this.
I would vote for something inconsistent but something that seems to make sense
for our use case:
- don't account for QNames at all
- always account for atomic items that are shared among trees
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