Boost C++ Libraries of the most highly regarded and expertly designed C++ library projects in the world. Herb Sutter and Andrei Alexandrescu, C++ Coding Standards

This is the documentation for a snapshot of the develop branch, built from commit dcea408971.

Struct template key_of_value



// In header: <boost/intrusive/options.hpp>

template<typename KeyOfValue> 
struct key_of_value {


This option setter specifies a function object that specifies the type of the key of an associative container and an operator to obtain it from a value type.

This function object must the define a type member typedef and a member with signature type [const&] operator()(const value_type &) const that will return the key from a value_type of an associative container