[Bug c++/56835] New: std::promise seems broken on 10.8 lion

[verdagon at gmail dot com]

http://gcc.gnu.org/bugzilla/show_bug.cgi?id=56835



             Bug #: 56835

           Summary: std::promise seems broken on 10.8 lion

    Classification: Unclassified

           Product: gcc

           Version: 4.8.1

            Status: UNCONFIRMED

          Severity: normal

          Priority: P3

         Component: c++

        AssignedTo: unassig...@gcc.gnu.org

        ReportedBy: verda...@gmail.com





Hi all, the following code crashes on 10.8 lion.



#include <future>

#include <iostream>



int main() {

   std::cout << "doing the test" << std::endl;

   std::promise<bool> mypromise;

   std::future<bool> myfuture = mypromise.get_future();

   mypromise.set_value(true);

   bool result = myfuture.get();

   std::cout << "success, result is " << result << std::endl;

   return 0;

}



with this output:



$ g++-mp-4.8 -std=c++11 test.cpp

$ ./a.out

doing the test

Segmentation fault: 11

$ 



more info:

gcc version 4.8.0 20130310 (experimental) (MacPorts gcc48 4.8-20130310_0) 

I'm on a Mac OS 10.8 (mountain lion)

compiled with: g++-mp-4.8 -std=c++11 test.cpp

(though I've tried with -lpthread and -pthread and they also crashed)

No compiler output, compiled just fine.



(see

http://stackoverflow.com/questions/15778085/is-stdpromise-broken-on-my-machine-using-g-mp?noredirect=1#comment22437010_15778085

for some runs on other machines)