id summary reporter owner description type status milestone component version severity resolution keywords cc 7414 c++11 compliance: future::get post-condition should be valid()==false viboes viboes "One of the differences between a future and a shared_future is that the value can be retrieved just once. This is the behavior of the standard. Boost.thread should behaves in this way as well. " Feature Requests closed Boost 1.53.0 thread Boost 1.51.0 Problem fixed