/*
typedef unsigned int bool;
const bool true = 1;
const bool false = 0;
*/
#else
#define cast_to_double	static_cast<double>
using std::pow;
#endif /* ! __cplusplus */

static inline double
max (const double x1, const double x2)
{
  return cast_to_double ((x1 >= x2) ? x1 : (x1 < x2) ? x2 : 0);
}