Contents

• NAME
• SYNOPSIS
  • F95 INTERFACE
  • C INTERFACE
• PURPOSE
• ARGUMENTS

NAME

     sdsdot - 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);

PURPOSE

     sdsdot 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 func-
               tion 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.