How ESPACK code should look like

Below you find a brief but hopefully complete list on how the code of espack should look like:

• identate by two spaces
• Code Style from Eclipse, see ESPACK_codesyle.xml:

  /*
   * A sample source file for the code formatter preview
   */
  #include <math.h>
  
  class Point
  {
  public:
    Point(double xc, double yc) :
      x(xc), y(yc)
    {
    }
    double distance(const Point& other) const;
  
    double x;
    double y;
  };
  
  double Point::distance(const Point& other) const
  {
    double dx = x - other.x;
    double dy = y - other.y;
    return sqrt(dx * dx + dy * dy);
  }