Hi, all.

I want to update a record during traversing all records.
so.. I write following code.
but i met an access violation..what's wrong?
Thanks for your reply, in advance...

===========================
DBT key, data;
DB_TXN *tid = NULL;
DBC *dbcp = NULL;
memset(&key, 0, sizeof(DBT));
memset(&data, 0, sizeof(DBT));
data.flags = DB_DBT_MALLOC;

ret = dbenv->txn_begin(dbenv, NULL, &tid, 0);
ret = dbp->cursor(dbp, tid, &dbcp, 0);
ret = dbcp->c_get(dbcp, &key, &data, DB_NEXT );

ret = dbcp->c_put(dbcp, &key, &data, DB_CURRENT); <--- A/V occurred.

For test, i update a record with same data DBT...
and all return values(ret) are checked...
traversing all records is okay, but when i add the last sentense, i met
the A/V error.