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<p style="margin: 0px 0px 1.2em ! important;">Hi Hans,</p>
<p style="margin: 0px 0px 1.2em ! important;">Thanks for your
answer !</p>
<p style="margin: 0px 0px 1.2em ! important;">I was asking that
because when I use auto keyword with a filter output, it seems
like is result in a normal point type, not a smart pointer, so a
code with</p>
<pre style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;font-size: 1em; line-height: 1.2em;margin: 1.2em 0px;"><code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;white-space: pre; overflow: auto; border-radius: 3px; border: 1px solid rgb(204, 204, 204); padding: 0.5em 0.7em; display: block ! important;">auto testOutput = testFilter->GetOutput();
</code></pre>
<p style="margin: 0px 0px 1.2em ! important;">has not the same
behavior as</p>
<pre style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;font-size: 1em; line-height: 1.2em;margin: 1.2em 0px;"><code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;white-space: pre; overflow: auto; border-radius: 3px; border: 1px solid rgb(204, 204, 204); padding: 0.5em 0.7em; display: block ! important;"> FilterOutputType::Pointer testOutput = testFilter->GetOutput();
</code></pre>
<p style="margin: 0px 0px 1.2em ! important;"><code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;">testOutput</code>
is a smart pointer in the second case, and a normal pointer in
the first one.</p>
<p style="margin: 0px 0px 1.2em ! important;">I was wondering if
it could interfere with the smart pointer role (for example
causing memory leak, or wrong reference count).</p>
<p style="margin: 0px 0px 1.2em ! important;">After a deeper look,
<code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;">New()</code>
return a smart pointer (so with auto =, no problem) and <code style="font-size: 0.85em; font-family: Consolas,Inconsolata,Courier,monospace;margin: 0px 0.15em; padding: 0px 0.3em; white-space: pre-wrap; border: 1px solid rgb(234, 234, 234); background-color: rgb(248, 248, 248); border-radius: 3px; display: inline;">GetOutput()</code>
a pointer. So the second code snipset just creates another
instance of a smart pointer.</p>
<p style="margin: 0px 0px 1.2em ! important;">I hope what was my
question is now clearer !<br>
Yann</p>
<p style="margin: 0px 0px 1.2em ! important;">Le 21/03/2017 à
01:43, Johnson, Hans J a écrit :</p>
<p style="margin: 0px 0px 1.2em ! important;"></p>
<div class="markdown-here-exclude">
<p></p>
<blockquote
cite="mid:7D94F016-18A7-4F89-9361-486AA6561E8E@uiowa.edu"
type="cite">
<pre wrap="">Yann,
It will work only if you are compiling with C++11, and you have no intention of sharing your code with others who may not use C++11 syntax.
ITK proper currently maintains backwards compatibility with older versions of C++.
Hans
</pre>
</blockquote>
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