...one of the most highly
regarded and expertly designed C++ library projects in the
world.
— Herb Sutter and Andrei
Alexandrescu, C++
Coding Standards
boost::interprocess::null_mapped_region_function — No-op functor.
// In header: <boost/interprocess/mapped_region.hpp> struct null_mapped_region_function { // public member functions bool operator()(void *, std::size_t, bool) const; };