//void glVertex2dv (const float64 *v)
func Vertex2dv(v []float64) {
if len(v) != 2 {
panic(ErrorInputSize)
}
C.glVertex2dv((*C.GLdouble)(&v[0]))
}
//void glVertex2dv (const float64 *v)
func Vertex2dv(v *[2]float64) {
C.glVertex2dv((*C.GLdouble)(&v[0]))
}