Concatenate two strings : string concatenation « string « C++ Tutorial

1. C++ Tutorial
2. string
3. string concatenation

#include <iostream>
#include <string>

using namespace std;

int main()
{
  string str1("A");
  string str2("B");
  string str3("G");
  string str4;

  cout << "  str1: " << str1 << endl;
  cout << "  str2: " << str2 << endl;
  cout << "  str3: " << str3 << "\n\n";

  // Concatenate two strings.
  str4 = str1 + str3;
  cout << "str4 after begin assigned st1+str3: " << str4 << "\n\n";

  return 0;
}