// example of iterating over a list
//
// build with: g++ -std=c++11 list_iterator.cpp 
// expected output:
//      one two three four 
//      one two 3 four 


#include <list>
#include <string>
#include <iostream>

using namespace std;

int main()
{
   list<string> words;          // note this code would work with vector<iterator>, etc.
   words.push_back("one");
   words.push_back("two");
   words.push_back("three");
   words.push_back("four");

   // I can count!
   for(auto w : words)
      cout << w << " ";
   cout << endl;

   // find "three" and change it to "3":
   auto wordlist_iterator = words.begin();
   while ( wordlist_iterator != words.end() && *wordlist_iterator != "three" )
      ++wordlist_iterator;
   if ( wordlist_iterator != words.end() )
      *wordlist_iterator = "3";

   // print list, this time using explicit iteration:
   for(auto wit = words.begin(); wit != words.end(); ++wit)
      cout << *wit << " ";
   cout << endl;

   return 0;
}