Re: [boost] Do you know of standard implementation of async() that blocks on the future-destructor?

12 Oct 2015

      Le 12/10/15 15:57, Agustín K-ballo Bergé a écrit :
...
On 10/11/2015 9:02 PM, Vicente J. Botet Escriba wrote:
...
Hi,
all is in the title.
Don't they all? Blocking in the future destructor is what the standard 
mandates.
I'm confused. Do they block on the future destructor or the destructor 
of the shared state?

The note of the standard says on the destructor of the returned future
...
"[ Note: If a future obtained from std::async is moved outside the 
local scope, other code that uses the future must be aware that the 
future’s destructor may block for the shared state to become ready. — 
end note ]"
C++ International Standard
Vicente