Boost C++ Application Development Cookbook - Second Edition

How to do it...

Nothing needs to be done as boost::function<> is also usable with lambda functions of any difficulty:

#include <deque>//#include "your_project/process_integers.h"void sample() {    // lambda function with no parameters that does nothing     process_integers([](int /*i*/){});      // lambda function that stores a reference     std::deque<int> ints;     process_integers([&ints](int i){         ints.push_back(i);     });      // lambda function that modifies its content     std::size_t match_count = 0;     process_integers([ints, &match_count](int i) mutable {         if (ints.front() == i) {            ++ match_count;         }         ints.pop_front();     });}