atomic operations for shared_ptr ?

[Jonathan Wakely]

On 24 August 2013 18:45, Bronek Kozicki wrote:
>
> what are the current plans for supporting atomic_* free functions for
> shared_ptr, as defined in C++11 (20.6.2 "Header <memory> synopsis")? These
> would be very useful for passing shared_ptr objects between threads, esp. if
> there are multiple readers and single writer.

I've been thinking about it recently and am probably just going to
implement it with a single global mutex used for all shared_ptr
instances.

I haven't looked into how easy it would be to modify our
implementation to support those operations without locks.