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NAME
     dzsum1 - take the sum of the absolute values  of  a  complex
     vector and returns a double precision result

SYNOPSIS
     DOUBLE PRECISION FUNCTION DZSUM1( N, CX, INCX )

     INTEGER INCX, N

     COMPLEX*16 CX( * )



     #include <sunperf.h>

     double dzsum1(int n, doublecomplex *cx, int incx) ;

PURPOSE
     DZSUM1 takes the sum of the absolute  values  of  a  complex
     vector and returns a double precision result.

     Based on DZASUM from the Level 1 BLAS.
     The change is to use the 'genuine' absolute value.

     Contributed by Nick Higham for use with ZLACON.


ARGUMENTS
     N         (input) INTEGER
               The number of elements in the vector CX.

     CX        (input) COMPLEX*16 array, dimension (N)
               The vector whose elements will be summed.

     INCX      (input) INTEGER
               The spacing between successive values of CX.  INCX
               > 0.

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