- checks for null pointers, returns ERR in that case. Also, the <EM>mv</EM> rou-
- tines check for error moving the cursor, returning ERR in that case.
- Otherwise they return OK
+ checks for null pointers, returns <STRONG>ERR</STRONG> in that case. Also, the <EM>mv</EM> rou-
+ tines check for error moving the cursor, returning <STRONG>ERR</STRONG> in that case.
+ Otherwise they return <STRONG>OK</STRONG>.