"vicente.botet" <vicente.botet@wanadoo.fr> writes:
Sorry i was not clear. The problem is that the reference to the task
std::packaged_task<result_type> task(std::move(f));
has been stored in the set_wait_callback. But this address is no more valable when the function returns, so when the user gets the future and call to get, the callback uses a bad address. Hoping it is clear now.
Yes, it's clear. That's a design issue with set_wait_callback.
Ok, I see. Anyway, I think that examples like template<typename F> std::packaged_task<typename std::result_of<F()>::type> lazy_call(F f);
should be included in the library, at least as an example.
That's a good idea. Anthony -- Author of C++ Concurrency in Action | http://www.manning.com/williams just::thread C++0x thread library | http://www.stdthread.co.uk Just Software Solutions Ltd | http://www.justsoftwaresolutions.co.uk 15 Carrallack Mews, St Just, Cornwall, TR19 7UL, UK. Company No. 5478976