Function zcopy_

numpy/linalg/lapack_lite/f2c_blas.c:15195–15267

Subroutine */

} /* zaxpy_ */

/* Subroutine */ int zcopy_(integer *n, doublecomplex *zx, integer *incx,
	doublecomplex *zy, integer *incy)
{
    /* System generated locals */
    integer i__1, i__2, i__3;

    /* Local variables */
    static integer i__, ix, iy;


/*
    Purpose
    =======

       ZCOPY copies a vector, x, to a vector, y.

    Further Details
    ===============

       jack dongarra, linpack, 4/11/78.
       modified 12/3/93, array(1) declarations changed to array(*)

    =====================================================================
*/

    /* Parameter adjustments */
    --zy;
    --zx;

    /* Function Body */
    if (*n <= 0) {
	return 0;
    }
    if (*incx == 1 && *incy == 1) {
	goto L20;
    }

/*
          code for unequal increments or equal increments
            not equal to 1
*/

    ix = 1;
    iy = 1;
    if (*incx < 0) {
	ix = (-(*n) + 1) * *incx + 1;
    }
    if (*incy < 0) {
	iy = (-(*n) + 1) * *incy + 1;
    }
    i__1 = *n;
    for (i__ = 1; i__ <= i__1; ++i__) {
	i__2 = iy;
	i__3 = ix;
	zy[i__2].r = zx[i__3].r, zy[i__2].i = zx[i__3].i;
	ix += *incx;
	iy += *incy;
/* L10: */