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 2023. The current version is 1.89.0.
boost::proto::_byval::result<This(T &)>
// In header: <boost/proto/transform/arg.hpp> template<typename This, typename T> struct result<This(T &)> : result<This(T)> { };