NAME

cswap - Exchange vectors x and y. 

SYNOPSIS

SUBROUTINE CSWAP (N, X, INCY, Y, INCY )

void cswap(long int n, complex ∗cx, long int incx, complex ∗
cy, long int incy)

INTEGER INCX, INCY, N

COMPLEX    X( ∗ ), Y( ∗ )

PURPOSE

CSWAP - Exchange x and y where x and y are n-vectors. 
 

PARAMETERS

N      - INTEGER. 
On entry, N specifies the number of elements in the vector.  N must be at least one for the subroutine to have any visible effect.  Unchanged on exit.

X      - COMPLEX array of DIMENSION at least
( 1 + ( n - 1 )∗abs( INCX ) ). On entry, the incremented array X must contain the vector x.  On exit, the y vector.

INCX   - INTEGER. 
On entry, INCX specifies the increment for the elements of X. INCX must not be zero. Unchanged on exit.

Y      - COMPLEX array of DIMENSION at least
( 1 + ( m - 1 )∗abs( INCY ) ). On entry, the incremented array Y must contain the vector y.  On exit, the x vector.

INCY   - INTEGER. 
On entry, INCY specifies the increment for the elements of Y. INCY must not be zero. Unchanged on exit.

Sun, Inc.  —  Last change: 20 Sep 1996