<html><head><meta http-equiv="Content-Type" content="text/html charset=iso-8859-1"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">support.h includes windows.h on win32 platform.<div>Does libstdc++ also include windows.h. I think this single include may be enough to explain the difference.<div><br><div><br><div><div>Le 2 oct. 2013 à 22:19, Yaron Keren <<a href="mailto:yaron.keren@gmail.com">yaron.keren@gmail.com</a>> a écrit :</div><br class="Apple-interchange-newline"><blockquote type="cite"><div dir="rtl"><div dir="ltr">Thanks, I see that now. It wasn't trivial for me...</div><div dir="ltr"><br></div><div dir="ltr">How can we understand why compiling the trivial program with libcxx is 3x slower vs with libstcd++ ?</div>
<div dir="ltr"><br></div><div dir="ltr">Yaron</div><div dir="ltr"><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote"><div dir="ltr">2013/10/2 Joerg Sonnenberger <span dir="ltr"><<a href="mailto:joerg@britannica.bec.de" target="_blank">joerg@britannica.bec.de</a>></span></div>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="im">On Wed, Oct 02, 2013 at 06:45:06PM +0300, Yaron Keren wrote:<br>
> Joerg, I am ashmed to admit I have re-read the code and still can not<br>
> understand how basic_string uses tuple. How basic_string uses tuple?<br>
<br>
</div>basic_string -> __compressed_pair -> __libcpp_compressed_pair_imp<br>
-> tuple.<br>
<div class="HOEnZb"><div class="h5"><br>
Joerg<br>
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