CPP

C++ Default Parameters

void myFunction(string country = "Norway") {
  cout << country << "
";
}

int main() {
  myFunction("Sweden");
  myFunction("India");
  myFunction();
  myFunction("USA");
  return 0;
}

// Sweden
// India
// Norway
// USA

c++ function default argument

void point(int x = 3, int y = 4);
 
point(1,2); // calls point(1,2)
point(1);   // calls point(1,4)
point();    // calls point(3,4)

default argument c++

Rational CreateRational(int num, int denom=1) {
  Rational result;
  result.numerator=num;
  result.denominator=denom;
  return result;
}