Ignoring the Voices: C++11 Example - Using auto

using_auto.cpp

#include <iostream>
#include <string>
#include <vector>

using namespace std;

void cpp_old()
{
    std::vector<std::string> my_collection;
    my_collection.push_back("Hello");
    my_collection.push_back("World");

    for (std::vector<std::string>::iterator it = my_collection.begin(); it != my_collection.end(); ++it)
    {
        cout << *it << endl;
    }
}

void cpp_new()
{
    std::vector<std::string> my_collection;
    my_collection.push_back("Hello");
    my_collection.push_back("World");

    for (auto it = my_collection.begin(); it != my_collection.end(); ++it)
    {
        cout << *it << endl;
    }
}

int main()
{
    cout << "Without using auto keyword" << endl;
    cpp_old();
    
    cout << "Using auto keyword" << endl;
    cpp_new();
}

Compiled as follows:

g++ -std=c++0x -Wall -Werror -o using_auto using_auto.cpp