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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Hi Bill,<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Good question, see the attached file for some timings. So for small sizes std::fill_n is actually slower. There seems to be a startup cost involved for std::fill.
On the other hand, filling such small arrays does not take a lot of time anyway, and I don't think that is done in a big loop. Or am I wrong there?<o:p></o:p></span></p>
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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Regards, Marius<o:p></o:p></span></p>
<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D"><o:p> </o:p></span></p>
<p class="MsoNormal"><b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif"">From:</span></b><span style="font-size:10.0pt;font-family:"Tahoma","sans-serif""> Bill Lorensen [mailto:bill.lorensen@gmail.com]
<br>
<b>Sent:</b> donderdag 11 april 2013 14:27<br>
<b>To:</b> Bradley Lowekamp<br>
<b>Cc:</b> Staring, M. (LKEB); Insight Developers<br>
<b>Subject:</b> Re: [Insight-developers] fill<o:p></o:p></span></p>
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<p class="MsoNormal">What do the timings look like for small array size, e.g. 3, 4... ITK uses Fill() to initialize sizes, indexes, points, etc. which are small.<o:p></o:p></p>
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