sdsdot(3P) Sun Performance Library sdsdot(3P)NAMEsdsdot - compute a constant plus the double precision dot product of
two single precision vectors x and y
SYNOPSIS
REAL FUNCTION SDSDOT(N, SB, SX, INCX, SY, INCY)
INTEGER N, INCX, INCY
REAL SB
REAL SX(*), SY(*)
REAL FUNCTION SDSDOT_64(N, SB, SX, INCX, SY, INCY)
INTEGER*8 N, INCX, INCY
REAL SB
REAL SX(*), SY(*)
F95 INTERFACE
REAL FUNCTION SDSDOT(N, SB, SX, INCX, SY, INCY)
INTEGER :: N, INCX, INCY
REAL :: SB
REAL, DIMENSION(:) :: SX, SY
REAL FUNCTION SDSDOT_64(N, SB, SX, INCX, SY, INCY)
INTEGER(8) :: N, INCX, INCY
REAL :: SB
REAL, DIMENSION(:) :: SX, SY
C INTERFACE
#include <sunperf.h>
float sdsdot(int n, float sb, float *sx, int incx, float *sy, int
incy);
float sdsdot_64(long n, float sb, float *sx, long incx, float *sy, long
incy);
PURPOSEsdsdot Computes a constant plus the double precision dot product of x
and y where x and y are single precision n-vectors.
ARGUMENTS
N (input)
On entry, N specifies the number of elements in the vector.
If N is not positive then the function returns the value 0.0.
Unchanged on exit.
SB (input)
On entry, the constant that is added to the dot product
before the result is returned. Unchanged on exit.
SX (input)
( 1 + ( n - 1 )*abs( INCX ) ). On entry, the incremented
array SX must contain the vector x. Unchanged on exit.
INCX (input)
On entry, INCX specifies the increment for the elements of
SX. Unchanged on exit.
SY (input)
( 1 + ( n - 1 )*abs( INCY ) ). On entry, the incremented
array SY must contain the vector y. Unchanged on exit.
INCY (input)
On entry, INCY specifies the increment for the elements of
SY. Unchanged on exit.
6 Mar 2009 sdsdot(3P)
