...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::icl::absorbs_identities<icl::map< DomainT, CodomainT, Traits, Compare, Combine, Section, Alloc >>
// In header: <boost/icl/map.hpp> template<typename DomainT, typename CodomainT, typename Traits, ICL_COMPARE Compare, ICL_COMBINE Combine, ICL_SECTION Section, ICL_ALLOC Alloc> struct absorbs_identities<icl::map< DomainT, CodomainT, Traits, Compare, Combine, Section, Alloc >> { // types typedef absorbs_identities type; // public member functions BOOST_STATIC_CONSTANT(int, value = Traits::absorbs_identities); };