C / C++ / MFC

class CGlobals
{
public:
  static int    gGlobalInt;
  static double gGlobalDouble;
  static short  gGlobalWarming;
};

double round_to( double number, unsigned number_of_decimal_places )
{
    double exponent( pow( 10, number_of_decimal_places ) );
    number *= exponent;   // disaster line!
    number += 0.5;
    return floor( number ) / exponent;
}

double rounded(double x, int n)
{
  double d = pow(10, (double)n);
  return ((int)(x * d + .5))/d;
}