Answers for "how to swap values in c++"

what did swap method return in c++

Return Value: The function does not return anything, it swaps the values of the two variables

swap string c++

// swap strings
#include <iostream>
#include <string>

main ()
{
  std::string buyer ("money");
  std::string seller ("goods");

  std::cout << "Before the swap, buyer has " << buyer;
  std::cout << " and seller has " << seller << 'n';

  seller.swap (buyer);

  std::cout << " After the swap, buyer has " << buyer;
  std::cout << " and seller has " << seller << 'n';

  return 0;
}