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<body><span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span> changed
<a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WORKSFORME - C++11 Narrowing conversion from int to double should give warning, not error"
href="http://llvm.org/bugs/show_bug.cgi?id=17833">bug 17833</a>
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<table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>What</th>
<th>Removed</th>
<th>Added</th>
</tr>
<tr>
<td style="text-align:right;">Status</td>
<td>NEW
</td>
<td>RESOLVED
</td>
</tr>
<tr>
<td style="text-align:right;">CC</td>
<td>
</td>
<td>richard-llvm@metafoo.co.uk
</td>
</tr>
<tr>
<td style="text-align:right;">Resolution</td>
<td>---
</td>
<td>WORKSFORME
</td>
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WORKSFORME - C++11 Narrowing conversion from int to double should give warning, not error"
href="http://llvm.org/bugs/show_bug.cgi?id=17833#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED WORKSFORME - C++11 Narrowing conversion from int to double should give warning, not error"
href="http://llvm.org/bugs/show_bug.cgi?id=17833">bug 17833</a>
from <span class="vcard"><a class="email" href="mailto:richard-llvm@metafoo.co.uk" title="Richard Smith <richard-llvm@metafoo.co.uk>"> <span class="fn">Richard Smith</span></a>
</span></b>
<pre>Resolving WORKSFORME: this error can already be disabled by using
-Wno-c++11-narrowing.
(In reply to <a href="show_bug.cgi?id=17833#c0">comment #0</a>)
<span class="quote">> In my opinion, this should be a warning, not an error, because it breaks
> correct legacy code.</span >
Such code is not correct C++11 code. Some porting effort should be expected
when trying to build C++98 code as C++11 code -- the new standard is not
entirely backwards-compatible.
<span class="quote">> The conversion from int to double is not in fact
> narrowing, because there is no 32-bit integer value that cannot be
> represented as a double.</span >
That is not how 'narrowing' is defined in the C++11 standard.</pre>
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