Microsoft KB Archive/10362
Purpose of the DECLARATIVES section
PSS ID Number: Q10362 Article last modified on 11-16-1992
2.00 2.10 2.20 3.00 3.00a 4.00 4.50 MS-DOS
Problem: The COBOL DECLARATIVES section for trapping I/O errors does not appear to be activated. The interrupt 24h I/O error vector is not altered by a COBOL program with a DECLARATIVES section in it; instead, I/O errors are handled by COMMAND.COM.
Response: The COBOL compiler does not check for Interrupt 24 errors. This is not part of the ANSI standard. The DECLARATIVES section is used as an alternate way to handle AT END, INVALID KEY, and various file status conditions.
Copyright Microsoft Corporation 1992.