darkstar.cpp

Class A{
  int A::B(double *x, double *y, double *z){
    if(x) *x = 10;
    if(y) *y = 10;
    if(z) *z = 10;
    return 1;
  }
  
  void main(){
    double oldX = 1;
    double oldY = 1;
    double oldZ = 1;
    //oldX, oldY, oldZ now is 1;
    new A()->B(&oldX, &oldY, &oldZ);
    //oldX, oldY, oldZ now is 10;
  }
}