dswap (3p)

Name

dswap - Exchange vectors x and y

Synopsis

SUBROUTINE DSWAP(N, X, INCX, Y, INCY)

INTEGER N, INCX, INCY
DOUBLE PRECISION X(*), Y(*)

SUBROUTINE DSWAP_64(N, X, INCX, Y, INCY)

INTEGER*8 N, INCX, INCY
DOUBLE PRECISION X(*), Y(*)




F95 INTERFACE
SUBROUTINE SWAP(N, X, INCX, Y, INCY)

INTEGER :: N, INCX, INCY
REAL(8), DIMENSION(:) :: X, Y

SUBROUTINE SWAP_64(N, X, INCX, Y, INCY)

INTEGER(8) :: N, INCX, INCY
REAL(8), DIMENSION(:) :: X, Y




C INTERFACE
#include <sunperf.h>

void dswap(int n, double *x, int incx, double *y, int incy);

void dswap_64(long n, double *x, long incx, double *y, long incy);

Description

Oracle Solaris Studio Performance Library                            dswap(3P)



NAME
       dswap - Exchange vectors x and y


SYNOPSIS
       SUBROUTINE DSWAP(N, X, INCX, Y, INCY)

       INTEGER N, INCX, INCY
       DOUBLE PRECISION X(*), Y(*)

       SUBROUTINE DSWAP_64(N, X, INCX, Y, INCY)

       INTEGER*8 N, INCX, INCY
       DOUBLE PRECISION X(*), Y(*)




   F95 INTERFACE
       SUBROUTINE SWAP(N, X, INCX, Y, INCY)

       INTEGER :: N, INCX, INCY
       REAL(8), DIMENSION(:) :: X, Y

       SUBROUTINE SWAP_64(N, X, INCX, Y, INCY)

       INTEGER(8) :: N, INCX, INCY
       REAL(8), DIMENSION(:) :: X, Y




   C INTERFACE
       #include <sunperf.h>

       void dswap(int n, double *x, int incx, double *y, int incy);

       void dswap_64(long n, double *x, long incx, double *y, long incy);



PURPOSE
       dswap Exchange x and y where x and y are n-vectors.


ARGUMENTS
       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)
                 (  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.
                 Unchanged on exit.


       Y (input/output)
                 (  1  +  (  n - 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.
                 Unchanged on exit.




                                  7 Nov 2015                         dswap(3P)