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[Octave-bug-tracker] [bug #35021] Floating point exception on matrix mul

From: Jordi Gutiérrez Hermoso
Subject: [Octave-bug-tracker] [bug #35021] Floating point exception on matrix multiplication
Date: Fri, 09 Dec 2011 14:35:14 +0000
User-agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv: Gecko/20110109 Waterpanther/3.6.13

Update of bug #35021 (project octave):

                  Status:               Need Info => Invalid                
             Open/Closed:                    Open => Closed                 


Follow-up Comment #9:


"When an instance of undefined behavior occurs, so far as the language
specification is concerned anything could happen, _maybe nothing at all._"

It is folly to attempt a careful analysis of a problem by examining what
particular UB it causes. UB only tells you that something is wrong, may
sometimes point to the general location of the problem, or may occur in a
completely unrelated location. "Everything works fine" is just another
expression of UB.

I am going to tentatively close this as a bug with ATLAS, not with Octave. If
you get a response from ATLAS that indicates that Octave is doing something
wrong, we can reopen this report.


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