例題
[C3535.cob] 000001 IDENTIFICATION DIVISION. 000002 PROGRAM-ID. C3535. 000003 ENVIRONMENT DIVISION. 000004 CONFIGURATION SECTION. 000005 DATA DIVISION. 000006 WORKING-STORAGE SECTION. 000007 01 DATA-1 PIC 9(10). 000008 01 DATA-2 PIC N(10). 000009 PROCEDURE DIVISION. 000010 MOVE FUNCTION NATIONAL-OF ( DATA-1 ) TO DATA-2. 000011 EXIT PROGRAM. 000012 END PROGRAM C3535.
C3535.cob 10: JMN3535I-S FUNCTION NATIONAL-OFの引数-1は，字類が英字または英数字でなければなりません．
