By using this site, you agree to our updated Privacy Policy and our Terms of Use. Manage your Cookies Settings.
445,885 Members | 1,474 Online
Bytes IT Community
+ Ask a Question
Need help? Post your question and get tips & solutions from a community of 445,885 IT Pros & Developers. It's quick & easy.

Controlling/releasing ownership in shared_ptr

P: n/a
In the code below , a simplified version
I need to pass a smart pointer to function f which I control .I
cannot use std::auto_ptr as a parameter to f because
it releases ownership on copy construction and I still need the
pointer after f returns.( may be I could return the auto_ptr
again ?? )

after f does its stuff , i need to pass it to g which expects a raw
pointer ( I cannot change that API )
I know g does maintain its own ptr_deque which takes care of
ownership etc.. ,

I am forced to do a get() on the shared_ptr ( instead of an ideal
release() on auto_ptr which would free the ptr from smart
management )
Now shared_ptr and ptr_deque desturctors cause a double delete
leading to UB.
How do i workaround this problem ?




void f(boost::shared_ptr<intt = boost::shared_ptr<int>())

void g(int* i){

int h(){
boost::shared_ptr<inti(new int);
f(i); //need to pass aroung i, so cant use std::auto_ptr
g(i.get()); //cant release from boost::shared_ptr ownership

int main(){
Jan 16 '08 #1
Share this question for a faster answer!
Share on Google+

This discussion thread is closed

Replies have been disabled for this discussion.