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[Octave-bug-tracker] [bug #50561] 350X slower code for eps() written in

From: John W. Eaton
Subject: [Octave-bug-tracker] [bug #50561] 350X slower code for eps() written in C++ rather than an m-file
Date: Thu, 16 Mar 2017 11:45:26 -0400 (EDT)
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Firefox/45.0 
Follow-up Comment #2, bug #50561 (project octave):

It would probably also be slightly faster to use double *pepsval =
epsval.data(); and then pepsval[i] instead of using expsval(i) for indexing in
the assignment inside the loop.  Or to use epsval.xelem(i).  Either of those
avoids the check on the reference count.

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  <http://savannah.gnu.org/bugs/?50561>

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