Re: [boost] [shared_ptr] Design question about make_shared

Stephan T. Lavavej wrote:

I don't look at Boost's implementation, but this makes me curious as to whether you implement the "we know where you live" optimization. On x86, for a 4-byte Foobar, how big is your reference count control block for make_shared<Foobar>()? Mine is 16 bytes.

Yes, you're right, I'm not eliminating the pointer at the moment. (I wasn't sure to which optimization you refer.)