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How to handle a numeric of size 20 in cobol

 
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sourav_dasgupta

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Joined: 26 Dec 2007
Posts: 18
Location: Chennai, India

PostPosted: Wed Feb 04, 2009 6:57 pm    Post subject: How to handle a numeric of size 20 in cobol
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Hi I have a file in which I have a field like the following
Code:

----+----3----+----4----+----5----+----6----+----7----+----8----+---
-0000000000049926.00                    00090047            20090202
 0000000000000157.40                    00090047            20090202
 0000000000111862.80                    00090047            20090202
 0000000000174050.96                    00090047            20090203
-0000000000326189.75 0000000000000000.0000090047            20090203
-0000000000243879.65                    00090047            20090203
-0000000000000517.82                    00090045            20090203
 0000000000332567.91 0000000000000000.0000010010            20090203
 0000000000090452.91 0000000000000000.0000010010            20090203


The field starting from 21st position till 40th position has to be treated like a numeric field and I have to add all these rows value for this position to find out the sum total in cobol. But cobol does not support numeric of more than 18 size. Can any one please help me to find out how to do that?
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Robert Sample

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Joined: 06 Jun 2008
Posts: 7992
Location: Bellevue, IA

PostPosted: Wed Feb 04, 2009 7:01 pm    Post subject:
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Quote:
But cobol does not support numeric of more than 18 size.
Find the COBOL Programming Guide manual in the manuals link at the top of the page and look at the ARITH(EXTEND) compiler option. You will find your statement is not true if ARITH(EXTEND) is used.
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Anuj Dhawan

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Joined: 22 Apr 2006
Posts: 6258
Location: Mumbai, India

PostPosted: Wed Feb 04, 2009 7:21 pm    Post subject:
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or if you are restricted to an old compiler where the ARITH(EXTEND) option was not yet available, you could split the 20-digit numbers into "left" and "right" halves, add the right halves together, carry (if necessary) to the left halves, add the left halves, then concatenate the halves back together into your 20-digit number and then since you are limited to 18 digits, you'd need to define that 20-digit number as alphanumeric.
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