CSPICE Routines: SHELLI

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CSPICE Routines: SHELLI_C

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SHELLI_C: Shell sort an integer array

Abstract

   Sort an integer array using the Shell Sort algorithm.

Required_Reading
```
   None. 
```

Brief_I/O

   VARIABLE  I/O  DESCRIPTION 
   --------  ---  -------------------------------------------------- 
   ndim       I   Dimension of the array. 
   array     I/O  The array.

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. 
```

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 shelli_c, the array would be ordered as 
   follows: 

      -77 
       33 
       44 
       55 
       66 
       99

Restrictions
```
   None. 
```

Exceptions

   Error free. 

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

Files
```
   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 an integer array 
```
Link to routine source

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