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pecram24
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Joined: 12 Oct 2009
Posts: 35
Location: Chennai
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Hi could anyone please help me on this..
What 'll happen while
Moving SPACES to a
COMP variable,
Signed Numeric S9(3),
Initializing
COMP variable,
Signed Numeric S9(3)
Thanks in advance  |
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guptae
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Joined: 14 Oct 2005
Posts: 1208
Location: Bangalore,India
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Hello pecram24,
Why dont you just tried both the case & get the result by urself? |
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pecram24
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Joined: 12 Oct 2009
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Location: Chennai
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I tried both the cases..
but i just wanted to know about in detail. That's the reason i am asking here... |
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guptae
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| What was the result? |
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pecram24
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Joined: 12 Oct 2009
Posts: 35
Location: Chennai
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While moving SPACES into a COMP variable the value of that variable becomes ZERO.
Even while initializing also the value of the COMP variable is ZERO.
But in case of S9(3)....
After moving SPACES& INITIALIZING, i am getting an error message saying that INVALID DECIMAL. |
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Robert Sample
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Joined: 06 Jun 2008
Posts: 8696
Location: Dubuque, Iowa, USA
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Which compiler are you using? My results are a compile error (as expected):
| Code: |
01 WS-DATA.
05 WS-VAR1 PIC S9(03) COMP.
*
PROCEDURE DIVISION.
S1000-INITIALIZE.
MOVE SPACES TO WS-VAR1.
IGYPA3005-S "SPACES" and "WS-VAR1 (BINARY INTEGER)" did not follow the "MOVE"
statement compatibility rules. The statement was discarded.
DISPLAY 'SPACES ' WS-VAR1.
MOVE ZERO TO WS-VAR1.
DISPLAY 'ZERO ' WS-VAR1.
INITIALIZE WS-VAR1.
DISPLAY 'INITIALIZE ' WS-VAR1.
GOBACK. |
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pecram24
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Joined: 12 Oct 2009
Posts: 35
Location: Chennai
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@ Robert Sample ..
My question is something different....
You are using S9(3) COMP.. but my question is about S9(3) and
S9(9) COMP....
Could you please try for this ... |
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dick scherrer
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Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Hello,
Regardless of what the compiler might permit, code should not move spaces to numeric fields. . . There is no good reason to do this.
Organizations with programmiing standards will not allow such code to be promoted. |
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pecram24
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Joined: 12 Oct 2009
Posts: 35
Location: Chennai
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I have one doubt here..
What the INITIALIZE verb 'll do..
my assumption is... it 'll move SPACES to the alphanumeric fields...and ZEROS to the numeric fields.....
but in my case it's not happening.. why like that |
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dick scherrer
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Joined: 23 Nov 2006
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Hellol,
| Quote: |
| but in my case it's not happening.. why like that |
You need to post the variables that are being initialized, the initialize code and show the unwanted values that result.
At the top of the page is a link to "IBM Manualls". The first set is for COBOL. Look in the Language Reference for your level of cobol and read all of the specifics about INITIALIZE.
If you find something that is not clear,post what you found and your doubt about it. Someone will be able to clarify. |
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Kjeld
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Posts: 365
Location: Denmark
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| Robert Sample wrote: |
Which compiler are you using? My results are a compile error (as expected):
| Code: |
01 WS-DATA.
05 WS-VAR1 PIC S9(03) COMP.
*
PROCEDURE DIVISION.
S1000-INITIALIZE.
MOVE SPACES TO WS-VAR1.
IGYPA3005-S "SPACES" and "WS-VAR1 (BINARY INTEGER)" did not follow the "MOVE"
statement compatibility rules. The statement was discarded.
DISPLAY 'SPACES ' WS-VAR1.
MOVE ZERO TO WS-VAR1.
DISPLAY 'ZERO ' WS-VAR1.
INITIALIZE WS-VAR1.
DISPLAY 'INITIALIZE ' WS-VAR1.
GOBACK. |
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The compiler output tells you... The move SPACES instruction were discarded. You are displaying the initial storage contents in your working storage for the first display of WS-VAR1, and that is low values which is zero in a comp field.
If you manage to get 3 space characters into a S9(3) COMP mask you would get x'404040' which yields a value of 4.210.752. |
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Robert Sample
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Location: Dubuque, Iowa, USA
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| Quote: |
What 'll happen while
Moving SPACES to a
COMP variable,
Signed Numeric S9(3), |
If you MEANT two variables in your statement, why didn't you specify that they were different variables? If you cannot tell us precisely what your question is, how do you expect us to answer it correctly? |
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dbzTHEdinosauer
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Robert,
you are being too harsh! As Marso so eloquently explained in this thread,
despite the fact that this is an english forum about an english documented machine,
we should read between the lines and determine what the user has meant, not what the user has said.
treating language literally is only for compilers, apparently. |
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Kjeld
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Posts: 365
Location: Denmark
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| Kjeld wrote: |
| If you manage to get 3 space characters into a S9(3) COMP mask you would get x'404040' which yields a value of 4.210.752. |
...provided you are working on a EBCDIC system. On a ASCII system you will get x'202020', with the decimal equivalent 2.105.376 |
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Robert Sample
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Location: Dubuque, Iowa, USA
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| Quote: |
| On a ASCII system you will get x'202020', with the decimal equivalent 2.105.376 |
And which IBM mainframe are YOU working on that uses ASCII? |
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Robert Sample
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Location: Dubuque, Iowa, USA
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| Quote: |
| we should read between the lines and determine what the user has meant, not what the user has said. |
Dick, I had a job one time where it was documented in my annual review that one of my tasks was to read programmer's minds. I never did get rated well on that aspect of the job. |
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Robert Sample
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Location: Dubuque, Iowa, USA
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And, by the way, here's the code:
| Code: |
05 WS-VAR1 PIC S9(03) COMP.
05 WS-VAR2 PIC S9(03) .
*
PROCEDURE DIVISION.
S1000-INITIALIZE.
MOVE SPACES TO WS-VAR1.
DISPLAY 'SPACES ' WS-VAR1.
MOVE ZERO TO WS-VAR1.
DISPLAY 'ZERO ' WS-VAR1.
INITIALIZE WS-VAR1.
DISPLAY 'INITIALIZE ' WS-VAR1.
MOVE SPACES TO WS-VAR2.
DISPLAY 'SPACES ' WS-VAR2.
MOVE ZERO TO WS-VAR2.
DISPLAY 'ZERO ' WS-VAR2.
INITIALIZE WS-VAR2.
DISPLAY 'INITIALIZE ' WS-VAR2. |
and here's the compiler output:
| Code: |
S1000-INITIALIZE.
MOVE SPACES TO WS-VAR1.
IGYPA3005-S "SPACES" and "WS-VAR1 (BINARY INTEGER)" did not follow the "MOVE"
statement compatibility rules. The statement was discarded.
DISPLAY 'SPACES ' WS-VAR1.
MOVE ZERO TO WS-VAR1.
DISPLAY 'ZERO ' WS-VAR1.
INITIALIZE WS-VAR1.
DISPLAY 'INITIALIZE ' WS-VAR1.
MOVE SPACES TO WS-VAR2.
IGYPA3005-S "SPACES" and "WS-VAR2 (NUMERIC INTEGER)" did not follow the "MOVE"
statement compatibility rules. The statement was discarded.
DISPLAY 'SPACES ' WS-VAR2.
MOVE ZERO TO WS-VAR2.
DISPLAY 'ZERO ' WS-VAR2.
INITIALIZE WS-VAR2.
DISPLAY 'INITIALIZE ' WS-VAR2. |
Using COMP or not does not matter to the compiler -- moving SPACES to a numeric field is not allowed. |
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Kjeld
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Posts: 365
Location: Denmark
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It was only because I read in another discussion that it would be a possibility if you were compiling for and executing the cobol code in a ASCII (UNIX?) system.
I have not seen an IBM mainframe that uses ASCII codepages, though. |
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pecram24
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Joined: 12 Oct 2009
Posts: 35
Location: Chennai
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Robert
Can u do me a favor..
Let's have both the variables under a group variable.. and try to move spaces to that group variable... and let me know what u are getting... because i didn't get error while doing compilation.... |
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Craq Giegerich
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Joined: 19 May 2007
Posts: 1512
Location: Virginia, USA
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| pecram24 wrote: |
Robert
Can u do me a favor..
Let's have both the variables under a group variable.. and try to move spaces to that group variable... and let me know what u are getting... because i didn't get error while doing compilation.... |
Group moves are always alphanumeric! |
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pecram24
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Posts: 35
Location: Chennai
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| what it means.. could you please elaborate your answer... |
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Robert Sample
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Location: Dubuque, Iowa, USA
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Moving spaces to a group will always work because groups are always alphanumeric. And where in your original post did you state you were using a grouip?
| Quote: |
Moving SPACES to a
COMP variable,
Signed Numeric S9(3), |
In fact, you specifically stated you were moving spaces to a COMP variable.
Perhaps if you fully and completely specified your question in the first place, you would have gotten an answer much faster. |
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pecram24
New User
Joined: 12 Oct 2009
Posts: 35
Location: Chennai
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okay...Thanks Robert for your help...
I didn't know about this.. (Group moves are always alphanumeric)....
anyway thanks a lot |
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Ronald Burr
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Posts: 293
Location: U.S.A.
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You WOULD have known about that ( Group moves are always alphanumeric ) IF you had read the COBOL Language Reference Manual, where it explicitly says:
"A group move is treated as though it were an alphanumeric-to-alphanumeric elementary move, except that there is no conversion of data from one form of internal representation to another. In a group move, the receiving area is filled without consideration for the individual elementary items contained within either the sending area or the receiving area, except as noted in the OCCURS clause." |
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dick scherrer
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Joined: 23 Nov 2006
Posts: 19244
Location: Inside the Matrix
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Hello,
| Quote: |
| I didn't know about this.. (Group moves are always alphanumeric).... |
And now that you do know, do not move spaces to a group that contains numeric fields. . . |
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