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
Accesses the value of a Property by its compile-time constant ID.
template< property_type v> constexpr auto& operator[]( std::integral_constant< property_type, v >) noexcept; »more...template< property_type v> constexpr const auto& operator[]( std::integral_constant< property_type, v >) const noexcept; »more...