<html><head></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space; ">Mike, thanks for the comments. Please see responses below - also sent to the CFP study group.<div><br></div><div>-Jim</div><div><br><div><div>On Aug 6, 2012, at 2:34 AM, Mike Cowlishaw wrote:</div><br class="Apple-interchange-newline"><blockquote type="cite">
<meta content="text/html; charset=us-ascii" http-equiv="Content-Type">
<meta name="GENERATOR" content="MSHTML 9.00.8112.16447">
<div style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space">
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012">Hi Jim,</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012"></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012">I have read through the Part 2 draft and also Fred's
comments -- it is all looking very good. I have only a few minor comments,
with perhaps the last one being the most significant:</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012"></span></font> </div>
<blockquote style="MARGIN-RIGHT: 0px" dir="ltr">
<div dir="ltr" align="left"><font size="2" face="Courier"><span class="023162909-06082012">Comments on WG14 Study Group Draft (cfp2) -- July 22,
2012</span></font></div>
<div><font size="2" face="Courier"><span class="023162909-06082012"></span></font> </div>
<div dir="ltr" align="left"><font size="2" face="Courier"><span class="023162909-06082012">PDF page 5, para 3: this paragraph might be confusing
to later<br> readers, because z/Architecture machines have had floating
point<br> decimal units for around 5 years and so "This, however,
provides<br> integer arithmetic only" is incorrect. Perhaps
something like<br> "Prior to the IBM System z10 processor, however, this
provided<br> integer arithmetic only"?</span></font></div></blockquote></div></blockquote>Ok.<br><blockquote type="cite"><div style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space"><blockquote style="MARGIN-RIGHT: 0px" dir="ltr">
<div><font face="Courier"></font> </div>
<div dir="ltr" align="left"><font size="2" face="Courier"><span class="023162909-06082012">PDF page 10: in the table the values for Emax and
Emin are different<br> from the emax and emin values in IEC 60559 --
presumably a<br> different definition is used in C11. Worth a
footnote to warn the<br> reader? The reader is referred to IEC
60559 for semantics, but<br> using Emax instead of emax would give
incorrect results.</span></font></div></blockquote></div></blockquote>The mismatch between the IEC 60559 and C models is indeed confusing. Yes, a footnote warning about the difference might be helpful.<br><blockquote type="cite"><div style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space"><blockquote style="MARGIN-RIGHT: 0px" dir="ltr">
<div><font face="Courier"></font> </div>
<div dir="ltr" align="left"><font size="2" face="Courier"><span class="023162909-06082012">PDF page 17, table: 'IEEE 754' should be 'IEC
60559'?</span></font></div></blockquote></div></blockquote>Right.<br><blockquote type="cite"><div style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space"><blockquote style="MARGIN-RIGHT: 0px" dir="ltr">
<div><font face="Courier"></font> </div>
<div dir="ltr" align="left"><font size="2" face="Courier"><span class="023162909-06082012">PDF pages 29-30: I'm not familiar with the definition
of "style f<br> formatting" in C11, but it is worth emphasising that
conversions to<br> strings (in printf for example) rpreserve th
quantum.</span></font></div></blockquote></div></blockquote>Style-f formatting doesn't generally preserve the quantum exponent. The decimal a,A formatting does though.<br><blockquote type="cite"><div style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space"><blockquote style="MARGIN-RIGHT: 0px" dir="ltr">
<div><font face="Courier"></font> </div>
<div dir="ltr" align="left"><font size="2" face="Courier"><span class="023162909-06082012"> Perhaps add to the examples on page 30 some
where c ends in 0,<br> e.g.:</span></font></div>
<div><font face="Courier"></font> </div>
<div dir="ltr" align="left"><font size="2" face="Courier"><span class="023162909-06082012"> ( 1, 120, -8)
0.00000120<br> ( 1, 120, -9) 1.20e-7</span></font></div></blockquote></div></blockquote>Good.<br><blockquote type="cite"><div style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space"><blockquote style="MARGIN-RIGHT: 0px" dir="ltr">
<div><font face="Courier"></font> </div>
<div dir="ltr" align="left"><font size="2" face="Courier"><span class="023162909-06082012"> In other words, a 'default' conversion from a
_Decimal to a string<br> and back to the same type of _Decimal must
result in a _Decimal<br> that is identical in (s, c, q) to the
original.</span></font></div></blockquote></div></blockquote>Assuming by 'default' you mean default a,A conversion.</div><div><br><blockquote type="cite"><div style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space">
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012">Also, it might be worth adding this link to your
Wiki: <a href="http://speleotrove.com/decimal/">http://speleotrove.com/decimal/</a></span></font></div></div></blockquote><div><br></div>Agreed</div><div><br><blockquote type="cite"><div style="WORD-WRAP: break-word; -webkit-nbsp-mode: space; -webkit-line-break: after-white-space">
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012"></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012">Feel free to forward this to the working
group. I'd be happy to reply to any specific questions,
etc.</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012"></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012">Cheers -- Mike</span></font></div>
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"><span class="023162909-06082012"></span></font> </div>
<div dir="ltr" align="left"><font color="#0000ff" size="2" face="Arial"></font> </div></div>
</blockquote></div><br></div></body></html>