utils.h

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#if !defined(UTILS_H_)
#define UTILS_H_

#include "math.h"

#define PI 3.1415926

int ilog2(int x);
int EvenPower(int x);
bool DoubleIsZero(double val);
double GetVectorAngle(double x, double y);

#endif // !defined(UTILS_H_)