Difference between std::thread and pthread

* Question: 

What are the differences between std::thread and pthread

* Answer: 

The std::thread library is implemented on top of pthreads in an environment supporting pthreads 

std::thread provides portability across different platforms like Windows, MacOS, and Linux, but may not be complete on all platforms yet.

The C++11 std::thread class unfortunately doesn't work reliably (yet) on every platform, even if C++11 seems available.

* Reference: 

http://stackoverflow.com/questions/13134186/c11-stdthreads-vs-posix-threads