Contents
caxpy - compute y := alpha * x + y
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, com-
plex *y, int incy);
void caxpy_64(long n, complex *alpha, complex *x, long incx,
complex *y, long incy);
caxpy compute y := alpha * x + y where alpha is a scalar and
x and y are n-vectors.
N (input)
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.
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.