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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Calling main() not identified as undefined behavior"
href="https://bugs.llvm.org/show_bug.cgi?id=43163">43163</a>
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<th>Summary</th>
<td>Calling main() not identified as undefined behavior
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>8.0
</td>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>jeff.linahan@gmail.com
</td>
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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>
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<pre>// ubtest.cpp
int main() {main();}
Compiling with "clang++ -fsanitize=undefined ubtest.cpp -o ubtest.exe"
In C++ calling main() is UB so I'd expect UBSan to immediately detect the nasal
demons invoked but this actually stack overflows after 250 calls on Ubuntu.</pre>
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