PIC S9(5) COMP with Certain Directives Gives Bad Values
PSS ID Number: Q45445 Article last modified on 04-20-1993
3.00 3.00a | 3.00 3.00a MS-DOS | OS/2
| The information in this article applies to: |
| - Microsoft COBOL for MS-DOS and OS/2, versions 3.0 and 3.0a |
Summary: In COBOL versions 3.0 or 3.0a, using all of the following directives together with a program containing PIC S9(5) COMP fields gives incorrect values: NOBOUND SIGN“EBCDIC” NOTRUNC MS“2” To work around this problem, use COMP-4 or a smaller field such as PIC S9(2). Microsoft has confirmed this to be a problem with versions 3.0 and 3.0a. This problem is corrected in Microsoft COBOL Professional Development System version 4.0 for MS-DOS and MS OS/2.
More Information: The following program does not increment the COUNTER and transfer data between LETTER-ARRAY-1 and LETTER-ARRAY-2. If you remove any of the directives, or change COUNTER to a PIC S9(5) COMP-4 or PIC S9(2) COMP, the program runs correctly. $SET NOBOUND $SET NOTRUNC $SET SIGN“EBCDIC” $SET MS“2” IDENTIFICATION DIVISION. ENVIRONMENT DIVISION. INPUT-OUTPUT SECTION. DATA DIVISION. WORKING-STORAGE SECTION. 01 ALPHA PIC X(26) VALUE “ABCDEFGHIJKLMNOPQRSTUVWXYZ”. 01 LETTER-ARRAY-1 REDEFINES ALPHA. 05 A-LETTER-1 PIC X OCCURS 26 TIMES. 01 LETTER-ARRAY-2. 05 A-LETTER-2 PIC X OCCURS 26 TIMES. 01 COUNTER PIC S9(5) COMP. SCREEN SECTION. 01 BLANK-SCREEN. 03 BLANK SCREEN. PROCEDURE DIVISION. DISPLAY BLANK-SCREEN. MOVE 0 TO COUNTER PERFORM LOOP-PROCEDURE UNTIL COUNTER = 26 DISPLAY LETTER-ARRAY-2. STOP RUN. LOOP-PROCEDURE. COMPUTE COUNTER = COUNTER + 1 MOVE A-LETTER-1 (COUNTER) TO A-LETTER-2 (COUNTER)
Additional reference words: 3.00 3.00a Copyright Microsoft Corporation 1993.
