/*  -- translated by f2c (version 19940927).

   You must link the resulting object file with the libraries:

	-lf2c -lm   (in that order)

*/

#include "f2c.h"

/* Double Complex */ VOID zdotc_(doublecomplex * ret_val, integer *n, 

	doublecomplex *zx, integer *incx, doublecomplex *zy, integer *incy)

{

    /* System generated locals */

    integer i__1, i__2;

    doublecomplex z__1, z__2, z__3;

    /* Builtin functions */

    void d_cnjg(doublecomplex *, doublecomplex *);

    /* Local variables */

    static integer i;

    static doublecomplex ztemp;

    static integer ix, iy;

/*     forms the dot product of a vector.   

       jack dongarra, 3/11/78.   

       modified 12/3/93, array(1) declarations changed to array(*)   

   Parameter adjustments */

    --zy;

    --zx;

    /* Function Body */

    ztemp.r = 0., ztemp.i = 0.;

     ret_val->r = 0.,  ret_val->i = 0.;

    if (*n <= 0) {

	return ;

    }

    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 <= *n; ++i) {

	d_cnjg(&z__3, &zx[ix]);

	i__2 = iy;

	z__2.r = z__3.r * zy[iy].r - z__3.i * zy[iy].i, z__2.i = z__3.r * 

		zy[iy].i + z__3.i * zy[iy].r;

	z__1.r = ztemp.r + z__2.r, z__1.i = ztemp.i + z__2.i;

	ztemp.r = z__1.r, ztemp.i = z__1.i;

	ix += *incx;

	iy += *incy;

/* L10: */

    }

     ret_val->r = ztemp.r,  ret_val->i = ztemp.i;

    return ;

/*        code for both increments equal to 1 */

L20:

    i__1 = *n;

    for (i = 1; i <= *n; ++i) {

	d_cnjg(&z__3, &zx[i]);

	i__2 = i;

	z__2.r = z__3.r * zy[i].r - z__3.i * zy[i].i, z__2.i = z__3.r * 

		zy[i].i + z__3.i * zy[i].r;

	z__1.r = ztemp.r + z__2.r, z__1.i = ztemp.i + z__2.i;

	ztemp.r = z__1.r, ztemp.i = z__1.i;

/* L30: */

    }

     ret_val->r = ztemp.r,  ret_val->i = ztemp.i;

    return ;

} /* zdotc_ */