Why is std::packaged_task not valid?

Question

Using MSVC2012,

The following code will compile and run as expected

std::packaged_task< int() > task( []()->int{ std::cout << \"hello          


        

Answer 1

This is a bug in MSVC2012. There are quite a few bugs in the thread library implementation that ships with MSVC2012. I posted a partial list in my blog post comparing it to my commercial Just::Thread library: http://www.justsoftwaresolutions.co.uk/news/just-thread-v1.8.0-released.html