Casting one C structure into another

Question

I have two identical (but differently named) C structures:

typedef struct {
      double x;
      double y;
      double z;
} CMAcceleration;


typedef struc         


        

Answer 1

You use an utility function for that:

void AccelerationToVector( struct CMAcceleration* from, struct Vector3d* to )
{
     to->x = from->x;
     to->y = from->y;
     to->z = from->z;
}