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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Iterator-based for-loop destroys the iterated object before the loop ends"
href="https://bugs.llvm.org/show_bug.cgi?id=44376">44376</a>
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<th>Summary</th>
<td>Iterator-based for-loop destroys the iterated object before the loop ends
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>9.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>FreeBSD
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++11
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
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<th>Reporter</th>
<td>yuri@tsoft.com
</td>
</tr>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=22963" name="attach_22963" title="clang-testcase-for-loop-object-destroyed.cpp">attachment 22963</a> <a href="attachment.cgi?id=22963&action=edit" title="clang-testcase-for-loop-object-destroyed.cpp">[details]</a></span>
clang-testcase-for-loop-object-destroyed.cpp
The attached testcase creates std::vector<int>, wraps it into
std::unique_ptr<std::vector<int>>, and iterates based on it.
std::unique_ptr<std::vector<int>> gets destroyed before the first iteration,
therefore invalidating the iterators.
All temporary objects involved in "for (auto it :
someExpressionWithTempObjects()) { }" should be destroyed after the loop ends.
clang version 9.0.0 on FreeBSD</pre>
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