Some C++11 magic

gistfile1.cpp

#include <iostream>
#include <functional>

using namespace std;

std::function<int()> getProc() {
    static int a = 0;
    
    auto p1 = [&]() {
        a++;
    };
    
    auto p2 = [&]() {
        a++;
    };
    
    return [&]() {p1(); p2(); return a;};
}

int main()
{
    auto p = getProc();
    std::cout << p() << std::endl;
    std::cout << p() << std::endl;
}