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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - template template argument deduction fail due to the imaginary conflict"
href="https://bugs.llvm.org/show_bug.cgi?id=44946">44946</a>
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<th>Summary</th>
<td>template template argument deduction fail due to the imaginary conflict
</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>
</tr>
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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++11
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>vopl@bk.ru
</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>
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<pre>enum class Enum {null};
template <Enum e> struct Pattern {};
template <int i> struct Breaker {};
struct Derived
: Pattern<Enum::null>
, Breaker<220> // <--------- this must not mades a collision with Pattern
because int is not a Enum
{};
template <template <Enum e> class P, Enum e> // here is Enum, int must not be
accepted
void matcher(P<e>);
int main()
{
matcher(Derived{});//'matcher' candidate ignored: failed template argument
deduction
return 0;
}
//affected versions: 8,9,10,11</pre>
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