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Easytrieve positive/neg numeric values

 
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shamus

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Joined: 22 Jul 2005
Posts: 7

PostPosted: Fri Oct 01, 2010 4:44 pm    Post subject: Easytrieve positive/neg numeric values
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Hi,
I read a file with 2 values, both numeric length 6, both will always be positive, but are not signed.

I want to subtract the second value from the first and display the result, if the result is negative, I need to show the Neg Sign.

I am having trouble showing the sign on the result, any suggestions?

I tried a mask, with no success. I am thinking I need to sign the values I read but dont know how this is done

Any help much appreciated
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dick scherrer

Site Director


Joined: 23 Nov 2006
Posts: 19270
Location: Inside the Matrix

PostPosted: Fri Oct 01, 2010 7:55 pm    Post subject:
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Hello,

Without studying the code, here is one way:

Define a signed field and compute this field as the subtraction of the 2 values. Then move this signed value to your output field definition.
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PeterHolland

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Joined: 27 Oct 2009
Posts: 2422
Location: Netherlands, Amstelveen

PostPosted: Sat Oct 02, 2010 2:55 pm    Post subject:
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IIRC, if you define your fields with decimal places e.g. "6 N 0"
Easytrev considers such fields as signed.
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quanzhong

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Joined: 12 Aug 2008
Posts: 46
Location: china

PostPosted: Sun Oct 31, 2010 12:01 pm    Post subject:
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hi, if you want to define a signed variable, try this
ws-avariable-1 w 6 n 0 // signed
ws-avariable-2 w 6 n // unsigned

Code:

If you specify a numeric field with decimal positions (0 to 18),
CA-Easytrieve/Plus considers it a signed (quantitative) field.
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PeterHolland

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Joined: 27 Oct 2009
Posts: 2422
Location: Netherlands, Amstelveen

PostPosted: Sun Oct 31, 2010 1:31 pm    Post subject:
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quanzhong,

thats what i said. Thanks for emphasizing my post.
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