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(gdbm.info)Delete

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Removing records from the database.
***********************************

   To remove some data from the database:

     ret = gdbm_delete(dbf, key);

   The parameters are:

GDBM_FILE dbf
     The pointer returned by `gdbm_open'.

datum key
     The `key' data.

   The ret value is -1 if the item is not present or the requester is a
reader.  The ret value is 0 if there was a successful delete.

   `gdbm_delete' removes the keyed item and the `key' from the database
`dbf'. The file on disk is updated to reflect the structure of the new
database before returning from this function.