BTERR bt_deletekey (BtDb *bt, unsigned char *key, uint len, uint lvl)
{
unsigned char lowerfence[BT_keyarray], higherfence[BT_keyarray];
BTERR bt_deletekey (BtDb *bt, unsigned char *key, uint len, uint lvl)
{
unsigned char lowerfence[BT_keyarray], higherfence[BT_keyarray];