dqdoti(3P) Sun Performance Library dqdoti(3P)NAMEdqdoti - compute a constant plus the extended precision dot product of
two double precision vectors x and y.
SYNOPSIS
DOUBLE PRECISION FUNCTION DQDOTI(N, DB, QC, DX, INCX, DY, INCY)
INTEGER N, INCX, INCY
REAL * 16 QC
DOUBLE PRECISION DB
DOUBLE PRECISION DX(*), DY(*)
DOUBLE PRECISION FUNCTION DQDOTI_64(N, DB, QC, DX, INCX, DY, INCY)
INTEGER*8 N, INCX, INCY
REAL * 16 QC
DOUBLE PRECISION DB
DOUBLE PRECISION DX(*), DY(*)
F95 INTERFACE
REAL(8) FUNCTION DQDOTI(N, DB, QC, DX, INCX, DY, INCY)
INTEGER :: N, INCX, INCY
REAL(16) :: QC
REAL(8) :: DB
REAL(8), DIMENSION(:) :: DX, DY
REAL(8) FUNCTION DQDOTI_64(N, DB, QC, DX, INCX, DY, INCY)
INTEGER(8) :: N, INCX, INCY
REAL(16) :: QC
REAL(8) :: DB
REAL(8), DIMENSION(:) :: DX, DY
C INTERFACE
#include <sunperf.h>
double dqdoti(int n, double db, long double *qc, double *dx, int incx,
double *dy, int incy);
double dqdoti_64(long n, double db, long double *qc, double *dx, long
incx, double *dy, long incy);
PURPOSEdqdoti computes a constant plus the double precision dot product of x
and y where x and y are double precision n-vectors.
ARGUMENTS
N (input)
On entry, N specifies the number of elements in the vector.
If N <= 0 then the function returns the value DB. Unchanged
on exit.
DB (input)
On entry, the constant that is added to the dot product
before the result is returned. Unchanged on exit.
QC (output)
On exit, the extended precision result.
DX (input)
On entry, the incremented array DX must contain the vector x.
Unchanged on exit.
INCX (input)
On entry, INCX specifies the increment for the elements of
DX. Unchanged on exit.
DY (input)
On entry, the incremented array DY must contain the vector y.
Unchanged on exit.
INCY (input)
On entry, INCY specifies the increment for the elements of
DY. Unchanged on exit.
Note:dqdoti does not exist in X86 libraries.
6 Mar 2009 dqdoti(3P)
