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 is an older version of Boost and was released in 2013. The current version is 1.89.0.
ref and cref
were originally part of the Tuple library
by Jaakko Järvi. They were "promoted to boost:: status" by
Peter Dimov because they are generally useful. Douglas Gregor and
Dave Abrahams contributed
is_reference_wrapper and
unwrap_reference. Frank Mori Hess and Ronald
Garcia contributed boost::unwrap_ref