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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 DUPLICATE - static construction order within translation unit, static data member of template class"
href="https://bugs.llvm.org/show_bug.cgi?id=39250">bug 39250</a>
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<th>What</th>
<th>Removed</th>
<th>Added</th>
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<td style="text-align:right;">Status</td>
<td>NEW
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<td>RESOLVED
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<td style="text-align:right;">CC</td>
<td>
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<td>richard-llvm@metafoo.co.uk
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<td style="text-align:right;">Resolution</td>
<td>---
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<td>DUPLICATE
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<b><a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - static construction order within translation unit, static data member of template class"
href="https://bugs.llvm.org/show_bug.cgi?id=39250#c1">Comment # 1</a>
on <a class="bz_bug_link
bz_status_RESOLVED bz_closed"
title="RESOLVED DUPLICATE - static construction order within translation unit, static data member of template class"
href="https://bugs.llvm.org/show_bug.cgi?id=39250">bug 39250</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>(In reply to cbcode from <a href="show_bug.cgi?id=39250#c0">comment #0</a>)
<span class="quote">> Within a single translation unit, static construction order is well defined,
> so that the construction of classes appearing late in the source file should
> be able to depend on the completed construction of static instances of
> classes appearing early in the source file.</span >
That's not entirely correct. There are two different kinds of global variables
that are relevant to your example:
Variables instantiated from templates have "unordered initialization"
Other variables[*] have "ordered initialization"
There are no order of initialization guarantees for variables with unordered
initialization. (There can't be: there is no single unique point within the
program where they're instantiated in general.)
Curiously, to my knowledge no-one has reported a problem with this until
recently, and in the past ~month we've had three reports of this. Can you
describe how you encountered this? Maybe there's some common cause of these
three reports.
*** This bug has been marked as a duplicate of <a class="bz_bug_link
bz_status_NEW "
title="NEW - ios_base::Init() gets called after user defined static constructor, causing a crash"
href="show_bug.cgi?id=38914">bug 38914</a> ***</pre>
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