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Name:       ifindnext

Purpose:    move current record pointer to next record by index

Prototype:  int ifindnext (Db_Obj *db, Index_Obj *index);

Header:     isam.h

Inputs:     db      - database handle
            index   - index handle

Description:
        ifindnext moves the file cursor (current record pointer) of the
        database db to the record associated with the next entry in the
        index.

        ifindnext returns EOI (end of index) if there is no next record.

Returns:
        OK, ERROR, or EOI (end of index).