caxpy (3p)

Name

caxpy - compute y := alpha * x + y

Synopsis

SUBROUTINE CAXPY(N, ALPHA, X, INCX, Y, INCY)

COMPLEX ALPHA
COMPLEX X(*), Y(*)
INTEGER N, INCX, INCY

SUBROUTINE CAXPY_64(N, ALPHA, X, INCX, Y, INCY)

COMPLEX ALPHA
COMPLEX X(*), Y(*)
INTEGER*8 N, INCX, INCY




F95 INTERFACE
SUBROUTINE AXPY(N, ALPHA, X, INCX, Y, INCY)

COMPLEX :: ALPHA
COMPLEX, DIMENSION(:) :: X, Y
INTEGER :: N, INCX, INCY

SUBROUTINE AXPY_64(N, ALPHA, X, INCX, Y, INCY)

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




C INTERFACE
#include <sunperf.h>

void caxpy(int n, complex *alpha, complex *x, int incx, complex *y, int
incy);

void caxpy_64(long n, complex *alpha, complex *x,  long  incx,  complex
*y, long incy);

Description

Oracle Solaris Studio Performance Library                            caxpy(3P)



NAME
       caxpy - compute y := alpha * x + y


SYNOPSIS
       SUBROUTINE CAXPY(N, ALPHA, X, INCX, Y, INCY)

       COMPLEX ALPHA
       COMPLEX X(*), Y(*)
       INTEGER N, INCX, INCY

       SUBROUTINE CAXPY_64(N, ALPHA, X, INCX, Y, INCY)

       COMPLEX ALPHA
       COMPLEX X(*), Y(*)
       INTEGER*8 N, INCX, INCY




   F95 INTERFACE
       SUBROUTINE AXPY(N, ALPHA, X, INCX, Y, INCY)

       COMPLEX :: ALPHA
       COMPLEX, DIMENSION(:) :: X, Y
       INTEGER :: N, INCX, INCY

       SUBROUTINE AXPY_64(N, ALPHA, X, INCX, Y, INCY)

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




   C INTERFACE
       #include <sunperf.h>

       void caxpy(int n, complex *alpha, complex *x, int incx, complex *y, int
                 incy);

       void caxpy_64(long n, complex *alpha, complex *x,  long  incx,  complex
                 *y, long incy);



PURPOSE
       caxpy  compute  y  := alpha * x + y where alpha is a scalar and 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.


       ALPHA (input)
                 On entry, ALPHA specifies the  scalar  alpha.   Unchanged  on
                 exit.


       X (input)
                 array  of  DIMENSION  at least ( 1 + ( n - 1 )*abs( INCX ) ).
                 Before entry, the incremented array X must contain the vector
                 x.  Unchanged on exit.


       INCX (input)
                 On entry, INCX specifies the increment for the elements of X.
                 Unchanged on exit.


       Y (input/output)
                 array of DIMENSION at least ( 1 + ( n - 1 )*abs(  INCY  )  ).
                 On  entry, the incremented array Y must contain the vector y.
                 On exit, Y is overwritten by the updated vector y.


       INCY (input)
                 On entry, INCY specifies the increment for the elements of Y.
                 Unchanged on exit.



                                  7 Nov 2015                         caxpy(3P)