[Development] QIntrusiveSharedPointer

Mutz, Marc marc at kdab.com
Thu Aug 8 10:09:57 CEST 2019


On 2019-08-08 10:29, Philippe wrote:
> Looks good, except that your proposed qIntrusiveDetached()
> has (apparently) the same "uncertainty" that caused 
> shared_ptr::unique()
> to be deprecated.
> https://en.cppreference.com/w/cpp/memory/shared_ptr/unique

The problem with shared_ptr::unique() is weak_ptr: weak_ptr::lock() can 
materialize new strong references at any time, cf. wg21.link/P1116 for a 
possible solution (which, however, isn't implementable in an 
ABI-compatible fashion on most platforms).

QISP doesn't have an associated weak_ptr.

Thanks,
Marc


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