I&#39;ll check this patch again before the end of the week since we don&#39;t seem to be in a hurry.<div><br></div><div>All I can say for sure is that in several places the compiler (not gcc, but msvc)</div><div>inserted sign extent instructions. I tracked them down to mismatches between ints and intptr_t</div>

<div>or ptrdiff_t. I fixed them by removing all compiler warnings of this kind.</div><div>I also had to convert all DWORD uses for adresses to DWORD_PTR (MS recommended</div><div>way of dealing with 32/64 bits).</div><div>

<br></div><div>For the record and to make sure everyone is aware of it, compiling with msvc for x64, you get :</div><div><br></div><div><div>C:\Temp&gt;long</div><div>short 2</div><div>int 4</div><div>long 4</div><div>long long 8</div>

<div>void* 8</div></div><div><br></div><div>The only difference with x86 is the size of the pointer which is 4 bytes (obviously).</div><div><br></div><div>Regards,</div><div><br></div><div>Fabrice</div><div><br></div><div>

<br><div class="gmail_quote">2012/2/20 Eli Zaretskii <span dir="ltr">&lt;<a href="mailto:eliz@gnu.org">eliz@gnu.org</a>&gt;</span><br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">

&gt; Date: Mon, 20 Feb 2012 12:43:34 -0800<br>
&gt; From: Paul Eggert &lt;<a href="mailto:eggert@cs.ucla.edu">eggert@cs.ucla.edu</a>&gt;<br>
&gt; CC: Eli Zaretskii &lt;<a href="mailto:eliz@gnu.org">eliz@gnu.org</a>&gt;, AJMR &lt;<a href="mailto:ajmr@ilovetortilladepatatas.com">ajmr@ilovetortilladepatatas.com</a>&gt;,<br>
&gt;  <a href="mailto:emacs-devel@gnu.org">emacs-devel@gnu.org</a><br>
<div class="im">&gt;<br>
&gt; Ideally any changes for Windows 64 would be only to the<br>
&gt; Windows-specific part of the code, so that we don&#39;t need to worry<br>
&gt; about its effect on GNU hosts.<br>
<br>
</div>gmalloc.c and ralloc.c must be exceptions from this rule, for obvious<br>
reasons.  (Though the 64-bit Windows build probably is, or will be,<br>
the only 64-bit platform to use these two.)<br>
<br>
I&#39;d also take a very good look at all the EMACS_UINT uses, and a few<br>
`long&#39;s and `unsigned long&#39;s in regex.c.<br>
</blockquote></div><br><br clear="all"><div><br></div>-- <br>Fabrice Popineau<div>-----------------------------</div><div>SUPELEC</div><div>Département Informatique</div><div>3, rue Joliot Curie</div><div>91192 Gif/Yvette Cedex</div>

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