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cdotu(3P)		    Sun Performance Library		     cdotu(3P)

NAME
       cdotu - compute the dot product of two vectors x and y.

SYNOPSIS
       COMPLEX FUNCTION CDOTU(N, X, INCX, Y, INCY)

       COMPLEX X(*), Y(*)
       INTEGER N, INCX, INCY

       COMPLEX FUNCTION CDOTU_64(N, X, INCX, Y, INCY)

       COMPLEX X(*), Y(*)
       INTEGER*8 N, INCX, INCY

   F95 INTERFACE
       COMPLEX FUNCTION DOTU([N], X, [INCX], Y, [INCY])

       COMPLEX, DIMENSION(:) :: X, Y
       INTEGER :: N, INCX, INCY

       COMPLEX FUNCTION DOTU_64([N], X, [INCX], Y, [INCY])

       COMPLEX, DIMENSION(:) :: X, Y
       INTEGER(8) :: N, INCX, INCY

   C INTERFACE
       #include <sunperf.h>

       complex cdotu(int n, complex *x, int incx, complex *y, int incy);

       complex cdotu_64(long n, complex *x, long incx, complex *y, long incy);

PURPOSE
       cdotu compute the dot product of x and y where x and y are 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.

       X (input)
		 of  DIMENSION	at  least  (  1 + ( n - 1 )*abs( INCX ) ).  On
		 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)
		 of DIMENSION at least ( 1 + ( n - 1  )*abs(  INCY  )  ).   On
		 entry,	 the  incremented  array  Y must contain the vector y.
		 Unchanged on exit.

       INCY (input)
		 On entry, INCY specifies the increment for the elements of Y.
		 Unchanged on exit.

				  6 Mar 2009			     cdotu(3P)

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