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<p class="MsoNormal"><span style="font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497D">Okay, I'll bite: so what *does* UINT128_MAX actually convert to?<o:p></o:p></span></p>
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<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""> cfe-commits [mailto:cfe-commits-bounces@lists.llvm.org]
<b>On Behalf Of </b>Richard Smith via cfe-commits<br>
<b>Sent:</b> Tuesday, December 08, 2015 10:52 AM<br>
<b>To:</b> Joerg Sonnenberger; cfe-commits<br>
<b>Subject:</b> Re: r254574 - PR17381: Treat undefined behavior during expression evaluation as an unmodeled<o:p></o:p></span></p>
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<p class="MsoNormal">On Tue, Dec 8, 2015 at 2:13 AM, Joerg Sonnenberger via cfe-commits <<a href="mailto:cfe-commits@lists.llvm.org" target="_blank">cfe-commits@lists.llvm.org</a>> wrote:<o:p></o:p></p>
<p class="MsoNormal">On Mon, Dec 07, 2015 at 01:32:14PM -0800, Richard Smith via cfe-commits wrote:<br>
> C11 <a href="http://6.3.1.5/1" target="_blank">6.3.1.5/1</a>: "If the value being converted is outside the range of values<br>
> that can be represented, the behavior is undefined."<br>
<br>
The value of 1e100 can be represented as +inf, even if not precisely.<o:p></o:p></p>
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<p class="MsoNormal">Only if +inf is in the range of representable values, which, as already noted, is problematic.<o:p></o:p></p>
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<p class="MsoNormal">This is a bit different from non-IEEE math like VAX, that doesn't have<br>
infinities.<o:p></o:p></p>
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<p class="MsoNormal"><br>
Joerg<br>
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