vec_sum()

vec_sum	(	struct vector *	vdest,
		const struct vector	v1,
		const struct vector	v2
	)

Returns the sum of two vectors in the first parameter.

struct vector vdest;
vec_sum(&vdest, v1,v2);

Parameters

[out]	vdest	Sum vector = v1 + v2.
[in]	v1	vector.
[in]	v2	vector.

                                                                                 {

  vdest->x=v1.x+v2.x;
  vdest->y=v1.y+v2.y;
  vdest->z=v1.z+v2.z;

}