cswap
cswap - Exchange vectors x and y.
SUBROUTINE CSWAP( N, X, INCX, Y, INCY)
COMPLEX X(*), Y(*)
INTEGER N, INCX, INCY
SUBROUTINE CSWAP_64( N, X, INCX, Y, INCY)
COMPLEX X(*), Y(*)
INTEGER*8 N, INCX, INCY
SUBROUTINE SWAP( [N], X, [INCX], Y, [INCY])
COMPLEX, DIMENSION(:) :: X, Y
INTEGER :: N, INCX, INCY
SUBROUTINE SWAP_64( [N], X, [INCX], Y, [INCY])
COMPLEX, DIMENSION(:) :: X, Y
INTEGER(8) :: N, INCX, INCY
#include <sunperf.h>
void cswap(int n, complex *x, int incx, complex *y, int incy);
void cswap_64(long n, complex *x, long incx, complex *y, long incy);
cswap Exchange x and y where x and y are n-vectors.
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* N (input)
-
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 (input/output)
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( 1 + ( n - 1 )*abs( INCX ) ).
On entry, the incremented array X must contain the
vector x. On exit, the y vector.
-
* INCX (input)
-
On entry, INCX specifies the increment for the elements of
X. INCX must not be zero.
Unchanged on exit.
-
* Y (input/output)
-
( 1 + ( m - 1 )*abs( INCY ) ).
On entry, the incremented array Y must contain the
vector y. On exit, the x vector.
-
* INCY (input)
-
On entry, INCY specifies the increment for the elements of
Y. INCY must not be zero.
Unchanged on exit.