Re-order the elements of an integer array according to 
    a given order vector. 

   None. 

   VARIABLE  I/O  DESCRIPTION 
   --------  ---  -------------------------------------------------- 
   iorder     I   Order vector to be used to re-order array. 
   ndim       I   Dimension of array. 
   array     I/O  Array to be re-ordered. 

   iorder      is the order vector to be used to re-order the input 
               array. The first element of iorder is the index of 
               the first item of the re-ordered array, and so on. 

               Note that the order imposed by reordi_c is not the 
               same order that would be imposed by a sorting 
               routine. In general, the order vector will have 
               been created (by one of the order routines) for 
               a related array, as illustrated in the example below. 

               The elements of iorder range from zero to ndim-1.

   ndim        is the number of elements in the input array. 

   array       on input, is an array containing some number of 
               elements in unspecified order. 

   array       on output, is the same array, with the elements 
               in re-ordered as specified by iorder. 

   None. 

   reordi_c uses a cyclical algorithm to re-order the elements of 
   the array in place. After re-ordering, element iorder[0] of 
   the input array is the first element of the output array, 
   element iorder[1] is the input array is the second element of 
   the output array, and so on. 

   The order vector used by reordi_c is typically created for 
   a related array by one of the order*_c routines, as shown in 
   the example below. 

   In the following example, the order*_c and reord*_c routines are 
   used to sort four related arrays (containing the names, 
   masses, integer ID codes, and visual magnitudes for a group 
   of satellites). This is representative of the typical use of 
   these routines. 

      #include "SpiceUsr.h"
          .
          .
          .
      /.
      Sort the object arrays by name. 
      ./ 

      orderc_c ( namlen, names, n,  iorder ); 

      reordc_c ( iorder, n, namlen, names  );
      reordd_c ( iorder, n,         masses ); 
      reordi_c ( iorder, n,         codes  ); 
      reordd_c ( iorder, n,         vmags  );

   None. 

   1) If memory cannot be allocated to create a Fortran-style version of
      the input order vector, the error SPICE(MALLOCFAILED) is signaled.

   2) If ndim < 2, this routine executes a no-op.  This case is 
      not an error.

   None. 

   N.J. Bachman    (JPL)
   W.L. Taber      (JPL) 
   I.M. Underwood  (JPL) 

   None. 

   -CSPICE Version 1.0.0, 10-JUL-2002 (NJB) (WLT) (IMU)

   reorder an integer array