// Copy Y <= X
func dcopy(N int, X []float64, incX int, Y []float64, incY int) {
C.dcopy_((*C.int)(unsafe.Pointer(&N)),
(*C.double)(unsafe.Pointer(&X[0])),
(*C.int)(unsafe.Pointer(&incX)),
(*C.double)(unsafe.Pointer(&Y[0])),
(*C.int)(unsafe.Pointer(&incY)))
}
//extern void dcopy_(int *n, double *x, int *incx, double *y, int *incy);
func Dcopy(n int, x []float64, incx int, y []float64, incy int) {
C.dcopy_(
(*C.int)(unsafe.Pointer(&n)),
array64(x),
(*C.int)(unsafe.Pointer(&incx)),
array64(y),
(*C.int)(unsafe.Pointer(&incy)),
)
}