NAME
cswap - Exchange vectors x and y.
SYNOPSIS
SUBROUTINE CSWAP (N, X, INCY, Y, INCY )
INTEGER INCX, INCY, N
COMPLEX X( * ), Y( * )
#include <sunperf.h>
void cswap(int n, complex *cx, int incx, complex * cy, int
incy) ;
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 sub-
routine 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.
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