#include "btree.h"
int bdelky(BTA* btact, char* key);
The bdelky function deletes a key from
the current root in the file associated with the
btact context pointer. The key, a
character string, is passed via the pointer in
key. If the key does not exist,
bdelky returns the error code
QNOKEY. bdelky
returns zero on successful deletion of a key.
A non-zero return from bdelky indicates
an error occurred during the key deletion process.