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<base href="https://bugs.llvm.org/">
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - non-type template parameter not working with clang, but working with gcc"
href="https://bugs.llvm.org/show_bug.cgi?id=49711">49711</a>
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<th>Summary</th>
<td>non-type template parameter not working with clang, but working with gcc
</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
</td>
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<th>Component</th>
<td>C++2a
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
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<th>Reporter</th>
<td>janezz55@gmail.com
</td>
</tr>
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<th>CC</th>
<td>blitzrakete@gmail.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=24689" name="attach_24689" title="c++ file demonstrating bug">attachment 24689</a> <a href="attachment.cgi?id=24689&action=edit" title="c++ file demonstrating bug">[details]</a></span>
c++ file demonstrating bug
This is not working with clang-11.1.0, but working with gcc-10.2.0:
#include <functional>
template <auto op>
constexpr auto compare(auto const ...a) noexcept
{
return op(a...);
}
int main()
{
return compare<std::greater<int>{}>(1, 2);
}
clang++ -std=c++20 a.cpp -o a
a.cpp:11:10: error: no matching function for call to 'compare'
return compare<std::greater<int>{}>(1, 2);
^~~~~~~~~~~~~~~~~~~~~~~~~~~~
a.cpp:4:16: note: candidate template ignored: invalid explicitly-specified
argument for template parameter 'op'
constexpr auto compare(auto const ...a) noexcept
^
1 error generated.</pre>
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