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Comparing characters using COBOL

 
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umanaga

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Joined: 09 Apr 2007
Posts: 33
Location: India

PostPosted: Sat Jun 07, 2008 7:46 am    Post subject: Comparing characters using COBOL
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Will the below logic work fine

CODE 1:
01 WS-VAR1 PIC X VALUE '#'.
01 WS-VAR2 PIC X VALUE 'V'.

IF (WS-VAR1 > WS-VAR2)
DISPLAY 'I AM IN IF'
ELSE
DISPLAY 'I AM IN ELSE'
END-IF.

CODE 2:
IF( '#' > 'V' )
DISPLAY 'I AM IN IF'
ELSE
DISPLAY 'I AM IN ELSE'
END-IF.

Thanks in advance. icon_smile.gif
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yogeshwar_ade

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Joined: 31 Aug 2006
Posts: 103
Location: INDIA

PostPosted: Sat Jun 07, 2008 7:50 am    Post subject: Reply to: Comparing character
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Why Don't You Try and let us know the result?
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umanaga

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Joined: 09 Apr 2007
Posts: 33
Location: India

PostPosted: Sat Jun 07, 2008 7:54 am    Post subject: Reply to: Comparing character
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I tried CODE 2, but got compilation error. I havn't checked CODE 1.
Now i don't have access to mainframe.
So would like to hear from experts.
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yogeshwar_ade

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Joined: 31 Aug 2006
Posts: 103
Location: INDIA

PostPosted: Sat Jun 07, 2008 8:56 am    Post subject: Reply to: Comparing character
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Your Code-1 will work & will give result as

Code:

I AM IN ELSE



It makes compare on equivalent EBCDIC collating sequence of '#' & 'V'.

Correct me If I am wrong.

Yogeshwar
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itdsen

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Joined: 20 Sep 2006
Posts: 23
Location: Chennai

PostPosted: Wed Jun 11, 2008 6:51 pm    Post subject: Reply to: Comparing characters using COBOL
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Code 1 will work fine.

result : I Am In Else.
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Phrzby Phil

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Joined: 31 Oct 2006
Posts: 962
Location: Richmond, Virginia

PostPosted: Thu Jun 12, 2008 5:56 pm    Post subject:
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Are you going to tell us the compiler error?

Since the compiler can see what is being compared, it knows the result, and can therefore generate just the code needed. The remaining codce is dead and the compiler will issue a level 4 warning for it.
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