node_instantiation.cc

#include <iostream>

// Some test functions to show that implementation is working.
void buy_func_usd() { std::cout << "buy usd." << std::endl; }
void buy_func_cad() { std::cout << "buy cad." << std::endl; }
void sell_func_usd() { std::cout << "sell usd." << std::endl; }
void sell_func_cad() { std::cout << "sell cad." << std::endl; }

int main() {
  // Buy Shares
  Node *buy_usd = new Node{"usd", "states", "united", "us"};
  buy_usd->set_action(buy_func_usd);

  Node *buy_cad = new Node{"cad", "canadian", "canada"};
  buy_cad->set_action(buy_func_cad);

  Node *buy = new Node{"add", "bought", "buy", "purchased"};
  buy->add_node(buy_usd);
  buy->add_node(buy_cad);

  // Sell Shares
  Node *sell_usd = new Node{"usd", "states", "united", "us"};
  sell_usd->set_action(sell_func_usd);

  Node *sell_cad = new Node{"cad", "canadian", "canada"};
  sell_cad->set_action(sell_func_cad);

  Node *sell = new Node{"sell", "sold", "rid"};
  sell->add_node(sell_usd);
  sell->add_node(sell_cad);

  // Root Node
  Node *root = new Node{};
  root->add_node(buy);
  root->add_node(sell);

  // Cleanup memory.
  delete root;
}