C++ Vector Map

vector_map.cpp

#include <functional>
#include <iterator>
#include <vector>
#include <iostream>

namespace std {
  template<typename S, typename E>
  vector<E> vector_map(typename std::vector<S>::iterator start, typename std::vector<S>::iterator end, std::function<E(S)> lambda) {
    vector<E> ret;

    do {
      ret.push_back(lambda(*start));
      ++start;
    } while (start != end);

    return ret;
  }
}

#include <iostream>
#include "vector_map.h"

int main() {
  std::vector<std::string> str_vec = { "0101", "-6", "12589" };

  auto int_vec = std::vector_map<std::string, int>(str_vec.begin(), str_vec.end(), [](const std::string s) {
    return std::stoi(s);
  });

  for (int i : int_vec) {
    std::cout << std::to_string(i) <<std::endl;
  }
}