Boost
C++ Libraries
...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
This version of Boost is under active development. You are currently in the master branch. The current version is 1.90.0.
boost::unwrap_ref
// In header: <boost/core/ref.hpp> template<typename T> unwrap_reference< T >::type & unwrap_ref(T & t);