topic negative values subtraction in Application Development and Automation Discussions

negative values subtraction

former_member188791 — Mon, 03 Nov 2014 14:00:55 GMT

Hi Group,

Hi ,

its regarding ABAP arithmetic,In my input file I am getting 3 currency fields name LM,PM, CM every time

I need to check the condition PM = LM - CM ,if it is not true needs to raise error message.

this is all working fine , but when I am getting negative values in the file my calculation going wrong ,instead of subtraction it is doing addition.I am getting the below scenarios:

LM +

PM +

CM -

LM -

PM -

CM +

Can any body suggest how I can handle this in ABAP.

Re: negative values subtraction

DominikKraemer — Mon, 03 Nov 2014 14:53:24 GMT

Hi Rajiv,

this is normal mathematic behaviour LM - (-CM) is the same as LM + CM...

If this behaviour is unwanted, check if the value is below 0 and then multiplicate with -1

Regards,

Dominik

Re: negative values subtraction

Former Member — Tue, 04 Nov 2014 00:01:26 GMT

Hi Rajiv,

If you do not want to consider the sign of each currency you can use the abs(variable) mathematical function.

Thanks & Regards,

Vijeta Galani.

Re: negative values subtraction

Former Member — Tue, 04 Nov 2014 05:31:37 GMT

Hi,

PM = LM - CM is same as LM = PM + CM. This will solve the - sign problem.

Re: negative values subtraction

Former Member — Tue, 04 Nov 2014 05:37:47 GMT

This message was moderated.

Re: negative values subtraction

matt — Tue, 04 Nov 2014 06:39:05 GMT

Let's say:

LM = 5

CM = -3

LM-CM = 8. So PM must be 8.

LM = -5

CM = 3

LM-CM = -2. So PM must be -2.

Why do you expect anything else? What are you actually trying to do? What is the business scenario.

Re: negative values subtraction

Former Member — Wed, 05 Nov 2014 09:53:58 GMT

I guess he wants to find difference of absolute values, ignoring sign.

Re: negative values subtraction

matt — Wed, 05 Nov 2014 10:59:18 GMT

You mean another basic programming problem?