Generate random id

generate_id.cpp

#include <random>

decltype(auto) generate_id(){
  std::string id("ID"); // Holds the ID, starting with the characters "ID" followed
  std::uniform_int_distribution<int> dist(0, 10000); // by a random integer in the range [0-10000].
  std::random_device rd;
  std::mt19937 engine(rd());

  id += std::to_string(dist(engine));

  return id;
}