<p></p>
<blockquote>
<p dir="auto">According to internet, clang and gcc can optimize strlen to a constant.</p>
</blockquote>
<p dir="auto">Yeah, but depends on what -O settings distros use.</p>
<p dir="auto">Either way it is scanning 18 chars in a loop thats reading data via a pipe from another process, which involves system calls and possibly process switches ie the difference is immaterial.  I would just let it rescan for simpler code.</p>

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