cscal (3p)

Name

cscal - Compute y := alpha * y

Synopsis

SUBROUTINE CSCAL(N, ALPHA, Y, INCY)

COMPLEX ALPHA
COMPLEX Y(*)
INTEGER N, INCY

SUBROUTINE CSCAL_64(N, ALPHA, Y, INCY)

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




F95 INTERFACE
SUBROUTINE SCAL(N, ALPHA, Y, INCY)

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

SUBROUTINE SCAL_64(N, ALPHA, Y, INCY)

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




C INTERFACE
#include <sunperf.h>

void cscal(int n, complex *alpha, complex *y, int incy);

void cscal_64(long n, complex *alpha, complex *y, long incy);

Description

Oracle Solaris Studio Performance Library                            cscal(3P)



NAME
       cscal - Compute y := alpha * y


SYNOPSIS
       SUBROUTINE CSCAL(N, ALPHA, Y, INCY)

       COMPLEX ALPHA
       COMPLEX Y(*)
       INTEGER N, INCY

       SUBROUTINE CSCAL_64(N, ALPHA, Y, INCY)

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




   F95 INTERFACE
       SUBROUTINE SCAL(N, ALPHA, Y, INCY)

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

       SUBROUTINE SCAL_64(N, ALPHA, Y, INCY)

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




   C INTERFACE
       #include <sunperf.h>

       void cscal(int n, complex *alpha, complex *y, int incy);

       void cscal_64(long n, complex *alpha, complex *y, long incy);



PURPOSE
       cscal Compute y := alpha * y where alpha is a scalar and y is an n-vec-
       tor.


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.


       Y (input/output)
                 (  1  +  ( n - 1 )*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.
                 This routine returns immediately if  INCY  is  less  than  or
                 equal to zero.  Unchanged on exit.




                                  7 Nov 2015                         cscal(3P)