#include "btree.h"
int btdel(BTA* btact, char* key);
The btdel function deletes a key and data
record in the file associated with the
btact context pointer.
key is a character pointer, identifying
the key to delete. If deletion of the key and data is
successful, btdel returns zero.
If btdel is called with a
key value of NULL, the delete operation
will act against the current key, as selected by
btsel, btseln or
btselp operations. This capability is
designed to allow deletion of a duplicate key, presumably
based on other, application managed, attributes.
A non-zero return from btdel indicates an
error occurred.
