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NAME
     dqdota  -  Compute  a  double  precision  constant  plus  an
     extended  precision constant plus the extended precision dot
     product of two double precision vectors x and y.

SYNOPSIS
     DOUBLE PRECISION FUNCTION DQDOTA (N, B, C, X, INCY, Y,  INCY
               )

     INTEGER INCX, INCY, N

     DOUBLE PRECISION    X( * ), Y( * )



     #include <sunperf.h>

     double dqdota(int n, double b, long double *dc, double  *dx,
               int incx, double *dy, int incy) ;

PURPOSE
     DQDOTI  -  Compute  a  double  precision  constant  plus  an
     extended  precision constant plus the extended precision dot
     product of two double precision vectors x and y.


PARAMETERS
     N         - INTEGER.
               On entry, N specifies the number  of  elements  in
               the  vector.   If N <= 0 then the function returns
               the value B+C.  Unchanged on exit.

     B         - DOUBLE PRECISION.
               On entry, the constant that is added  to  the  dot
               product  before the result is returned.  Unchanged
               on exit.

     C         - REAL*16.
               On entry, the extended precision  constant  to  be
               added  to  the dot product.  On exit, the extended
               precision result.

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

     INCX      - INTEGER.
               On entry, INCX specifies  the  increment  for  the
               elements  of  X. INCX must not be zero.  Unchanged
               on exit.

     Y         - DOUBLE PRECISION array of DIMENSION at least
               ( 1 + ( m - 1 )*abs( INCY  )  ).   On  entry,  the
               incremented  array  Y  must  contain the vector y.
               Unchanged on exit.

     INCY      - INTEGER.
               On entry, INCY specifies  the  increment  for  the
               elements  of  Y. INCY must not be zero.  Unchanged
               on exit.

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