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

   You must link the resulting object file with the libraries:

	-lf2c -lm   (in that order)

*/

#include "f2c.h"

/* Subroutine */ int zaxpy_(integer *n, doublecomplex *za, doublecomplex *zx, 

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

{

    /* System generated locals */

    integer i__1, i__2, i__3, i__4;

    doublecomplex z__1, z__2;

    /* Local variables */

    static integer i;

    extern doublereal dcabs1_(doublecomplex *);

    static integer ix, iy;

/*     constant times a vector plus a vector.   

       jack dongarra, 3/11/78.   

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

   Parameter adjustments   

       Function Body */

#define ZY(I) zy[(I)-1]

#define ZX(I) zx[(I)-1]

    if (*n <= 0) {

	return 0;

    }

    if (dcabs1_(za) == 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 <= *n; ++i) {

	i__2 = iy;

	i__3 = iy;

	i__4 = ix;

	z__2.r = za->r * ZX(ix).r - za->i * ZX(ix).i, z__2.i = za->r * ZX(

		ix).i + za->i * ZX(ix).r;

	z__1.r = ZY(iy).r + z__2.r, z__1.i = ZY(iy).i + z__2.i;

	ZY(iy).r = z__1.r, ZY(iy).i = z__1.i;

	ix += *incx;

	iy += *incy;

/* L10: */

    }

    return 0;

/*        code for both increments equal to 1 */

L20:

    i__1 = *n;

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

	i__2 = i;

	i__3 = i;

	i__4 = i;

	z__2.r = za->r * ZX(i).r - za->i * ZX(i).i, z__2.i = za->r * ZX(

		i).i + za->i * ZX(i).r;

	z__1.r = ZY(i).r + z__2.r, z__1.i = ZY(i).i + z__2.i;

	ZY(i).r = z__1.r, ZY(i).i = z__1.i;

/* L30: */

    }

    return 0;

} /* zaxpy_ */