[kepler-dev] [Kepler - Bug #6439] (New) Double rounding fails in some cases while evaluating Expressions

noreply at nceas.ucsb.edu noreply at nceas.ucsb.edu
Tue Mar 4 04:24:33 PST 2014


Issue #6439 has been reported by Owsiak Michal.

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Bug #6439: Double rounding fails in some cases while evaluating Expressions
https://projects.ecoinformatics.org/ecoinfo/issues/6439

* Author: Owsiak Michal
* Status: New
* Priority: Urgent
* Assignee: Derik Barseghian
* Category: actors
* Target version: 2.3.0
* Bugzilla-Id: 
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It seems that addition of doubles can produce values slightly different than they should to be.

Please take a look at attached workflow (simple_error.xml).

Condition that should be satisfied to escape the loop is: 1.7 > 1.5 + 0.1

However, loop is interrupted sooner, because of incorrect calculation of doubles. Value of "p" is set to: 1.6000000000000003 

This, of course, makes it impossible to use doubles as check points for the loops.

However, it seems that casting to string and back works fine (take a look at second workflow - simple.xml)

Cheers

Michal




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