c++ iteration

for.cpp

#include <vector>
#include <algorithm>
#include <iostream>

int main()
{
  std::vector<int> vec = { 1, 2, 3, 4, 5 };

  std::cout << "For loop, with auto" << std::endl;
  for(auto iter = vec.begin(); iter != vec.end(); ++iter)
  {
    std::cout << *iter << std::endl;
  }

  std::cout << "For loop, with range" << std::endl;
  for(auto i: vec)
  {
    std::cout << i << std::endl;
  }

  std::cout << "for_each, with lambda" << std::endl;
  for_each(vec.begin(), vec.end(), [](int i) {
    std::cout << i << std::endl;
  });

}