01:       SUBROUTINE ZCOPY(N,ZX,INCX,ZY,INCY)
02: *     .. Scalar Arguments ..
03:       INTEGER INCX,INCY,N
04: *     ..
05: *     .. Array Arguments ..
06:       DOUBLE COMPLEX ZX(*),ZY(*)
07: *     ..
08: *
09: *  Purpose
10: *  =======
11: *
12: *     copies a vector, x, to a vector, y.
13: *     jack dongarra, linpack, 4/11/78.
14: *     modified 12/3/93, array(1) declarations changed to array(*)
15: *
16: *
17: *     .. Local Scalars ..
18:       INTEGER I,IX,IY
19: *     ..
20:       IF (N.LE.0) RETURN
21:       IF (INCX.EQ.1 .AND. INCY.EQ.1) GO TO 20
22: *
23: *        code for unequal increments or equal increments
24: *          not equal to 1
25: *
26:       IX = 1
27:       IY = 1
28:       IF (INCX.LT.0) IX = (-N+1)*INCX + 1
29:       IF (INCY.LT.0) IY = (-N+1)*INCY + 1
30:       DO 10 I = 1,N
31:           ZY(IY) = ZX(IX)
32:           IX = IX + INCX
33:           IY = IY + INCY
34:    10 CONTINUE
35:       RETURN
36: *
37: *        code for both increments equal to 1
38: *
39:    20 DO 30 I = 1,N
40:           ZY(I) = ZX(I)
41:    30 CONTINUE
42:       RETURN
43:       END
44: