convert.h

给予QT的qps开源最新源码

#include <cmath>

inline double square(double x)
{
   return (x * x);
}

inline double deg2rad(double x)
{
   return (x * M_PI / 180);
}

inline double rad2deg(double x)
{
   return (x * 180 / M_PI);
}

inline double dms2deg(double d, double m, double s = 0)
{
   return (d + m / 60 + s / 3600);
}