Hi, I've got following problem; I've got a class Query, which is base class for QueryAllocation. Passing \ QueryAllocation object as Query to a function is pretty simple because of automatic cas\ ting:
void do_sth(const RefPtr<Query>& query); ... RefPtr<QueryAllocation> alloc_query = QueryAllocation::create (); do_sth (alloc_query); But... in do_sth method, refcount of my object equals 2 (because casting \ increases ref count, it's obvious). Unfortunately, I have to have refcoun\ t=1 in do_sth method, so that's what I'm doing now: RefPtr<QueryAllocation> alloc_query = QueryAllocation::create(); RefPtr<Query> query = alloc_query; query->unreference(); do_sth(query); query->reference(); query.reset(); It's workaround.. that would be great, if I can do something like "unmana\ ged RefPtr". It might look like this: RefPtr<QueryAllocation> alloc_query = QueryAllocation::create(); do_sth(RefPtr<Query>(alloc_query, false)); And constructor declaration: template<typename T> RefPtr(const RefPtr<T>& src, bool manage = true); If 'manage' equals false, RefPtr doesn't increase/decrease refcount durin\ g construction and destruction. I know, it's unsafe, and might lead to a \ problems, if somebody uses it wrong, but it allows me to remove a lot of \ magic from my code. Of course, it's only conceptual solution, maybe it would be better to do \ single function instead of constructor, ideas are welcome. Best regards, Marcin Kolny
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