const_iterator.cpp

#include <iostream>
#include <map>
using namespace std;

struct Foo{
    void DoSomething(int val) const;
    std::map<int, int> map_;
};

void Foo::DoSomething(int val) const {
    // const_iterator in const function
    // REFER: effective c++ item 49
    auto itr = map_.find(val);
}

int main()
{
   cout << "Hello World" << endl; 
   
   return 0;
}