...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
BOOST_VARIANT_DO_NOT_SPECIALIZE_STD_HASH — Define this macro if you do not wish to have a std::hash
specialization for
boost::variant
.
// In header: <boost/variant/variant_fwd.hpp>
BOOST_VARIANT_DO_NOT_SPECIALIZE_STD_HASH