/*

-Procedure shelld_c ( Shell sort a double precision array )

-Abstract
 
   Sort a double precision array using the Shell Sort algorithm. 
 
-Disclaimer

   THIS SOFTWARE AND ANY RELATED MATERIALS WERE CREATED BY THE
   CALIFORNIA INSTITUTE OF TECHNOLOGY (CALTECH) UNDER A U.S.
   GOVERNMENT CONTRACT WITH THE NATIONAL AERONAUTICS AND SPACE
   ADMINISTRATION (NASA). THE SOFTWARE IS TECHNOLOGY AND SOFTWARE
   PUBLICLY AVAILABLE UNDER U.S. EXPORT LAWS AND IS PROVIDED "AS-IS"
   TO THE RECIPIENT WITHOUT WARRANTY OF ANY KIND, INCLUDING ANY
   WARRANTIES OF PERFORMANCE OR MERCHANTABILITY OR FITNESS FOR A
   PARTICULAR USE OR PURPOSE (AS SET FORTH IN UNITED STATES UCC
   SECTIONS 2312-2313) OR FOR ANY PURPOSE WHATSOEVER, FOR THE
   SOFTWARE AND RELATED MATERIALS, HOWEVER USED.

   IN NO EVENT SHALL CALTECH, ITS JET PROPULSION LABORATORY, OR NASA
   BE LIABLE FOR ANY DAMAGES AND/OR COSTS, INCLUDING, BUT NOT
   LIMITED TO, INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND,
   INCLUDING ECONOMIC DAMAGE OR INJURY TO PROPERTY AND LOST PROFITS,
   REGARDLESS OF WHETHER CALTECH, JPL, OR NASA BE ADVISED, HAVE
   REASON TO KNOW, OR, IN FACT, SHALL KNOW OF THE POSSIBILITY.

   RECIPIENT BEARS ALL RISK RELATING TO QUALITY AND PERFORMANCE OF
   THE SOFTWARE AND ANY RELATED MATERIALS, AND AGREES TO INDEMNIFY
   CALTECH AND NASA FOR ALL THIRD-PARTY CLAIMS RESULTING FROM THE
   ACTIONS OF RECIPIENT IN THE USE OF THE SOFTWARE.

-Required_Reading
 
   None. 
 
-Keywords
 
    ARRAY,  SORT 
 
*/

   #include "SpiceUsr.h"
   #include "SpiceZfc.h"

   void shelld_c ( SpiceInt       ndim,
                   SpiceDouble  * array ) 

/*

-Brief_I/O
 
   VARIABLE  I/O  DESCRIPTION 
   --------  ---  -------------------------------------------------- 
   ndim       I   Dimension of the array. 
   array     I/O  The array to be sorted.

-Detailed_Input
 
   ndim        is the number of elements in the array to be sorted. 

   array       on input, is the array to be sorted. 
 
-Detailed_Output
 
   array       on output, contains the same elements, sorted 
               in increasing order. The actual sorting is done 
               in place in array. 
 
-Parameters
 
   None. 
 
-Files
 
   None. 
 
-Exceptions
 
   Error free. 

   1) If ndim < 2, this routine does not modify the array.

-Particulars
 
   The Shell Sort Algorithm is well known. 
 
-Examples
 
   Let array contain the following elements: 

       99. 
       33. 
       55. 
       44. 
      -77. 
       66. 

   Then after a call to shelld_c, the array would be ordered as 
   follows: 
 
      -77. 
       33. 
       44. 
       55. 
       66. 
       99. 

-Restrictions
 
   None. 
  
-Author_and_Institution
 
   N.J. Bachman    (JPL)
   I.M. Underwood  (JPL) 
 
-Literature_References
 
   None. 
 
-Version
 
   -CSPICE Version 1.0.0, 08-JUL-2002 (NJB) (IMU)

-Index_Entries
 
   shell sort a d.p. array 
 
-&
*/

{ /* Begin shelld_c */


   shelld_ ( ( integer    * ) &ndim,
             ( doublereal * ) array  );


} /* End shelld_c */