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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Sort function behaving incorrectly."
href="https://bugs.llvm.org/show_bug.cgi?id=52192">52192</a>
</td>
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<th>Summary</th>
<td>Sort function behaving incorrectly.
</td>
</tr>
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<th>Product</th>
<td>libc++
</td>
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<th>Version</th>
<td>11.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>All
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>All Bugs
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>edward.vogel@hpe.com
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org, mclow.lists@gmail.com
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=25368" name="attach_25368" title="This is the test program.">attachment 25368</a> <a href="attachment.cgi?id=25368&action=edit" title="This is the test program.">[details]</a></span>
This is the test program.
There seems to be an issue with the libc++ sort function. The attached program
runs correctly with the default library, but fails with libc++. The expected
output is 0.
Here is a cut/paste from a cygwin session:
$ clang++ -std=c++11 -o a.out -w t.cpp
VogelEd@XLB3502Q4E ~
$ ./a.out
got back 0
VogelEd@XLB3502Q4E ~
$ clang++ -std=c++11 -o a.out -stdlib=libc++ -w t.cpp
VogelEd@XLB3502Q4E ~
$ ./a.out
got back 260
Other environments (such as Visual Studio 2019) also emit 0.</pre>
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