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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - clang parser crash for instantiating char array"
href="https://bugs.llvm.org/show_bug.cgi?id=49709">49709</a>
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<th>Summary</th>
<td>clang parser crash for instantiating char array
</td>
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<th>Product</th>
<td>clang
</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>Linux
</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
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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>janezz55@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>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=24688" name="attach_24688" title=".cpp file demonstrating bug">attachment 24688</a> <a href="attachment.cgi?id=24688&action=edit" title=".cpp file demonstrating bug">[details]</a></span>
.cpp file demonstrating bug
This will cause a crash in clang-11.1.0, but not in gcc-10.2.0:
constexpr auto a(auto&& s) noexcept
{
return s[0];
}
template <char ...c>
constexpr auto operator "" _lol() noexcept
{
return a((char[]){c...});
}
int main()
{
return "123"_lol;
}
Compile with:
clang++ -std=c++20 t.cpp -o t</pre>
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