D_CLOSE

SUMMARY
   d_close()
DESCRIPTION
   Function d_close will close all open databases.All files use by the
   db_VISTA runtime are closed and all of its dynamically allocated memory
   is freed .All buffered changes made in single-use or exclusive access
   mode are written to the database files.
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Note:
   The consistency and integrity of a database may be impaired of a single-
   user or exclusive access mode aplication which is not using transaction
   processing terminates without having first closed the database.
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CURRENCY CHANGES
   The allocated memory used for the currency tables is freed.

RETURN CODES
   No special status codes
EXAMPLE
   main()
   {
   /* A db_VISTA application program */
   ...
   d_open("tims","s");
          .....          /* access "tims" database */
   d_close();
   }