Setting STL vector elements with at

setting_vector_at.cpp

#include<iostream>
#include<vector>

/** The name of std::vector::at makes it sound like it's a "getter" only.
 *  Can I set "v.at(i) = a" like I would "v[i] = a" ?
 *
 *  Yes.
 */

int main()
{
  std::vector<int> a(5);
  a.at(3) = 7;

  std::vector<int>::iterator it;
  for(it = a.begin(); it < a.end(); it++)
    std::cout << *it << std::endl;

  return 0;
}