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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - parameter pack expansion incorrectly when there is default parameter during template specialization"
href="https://bugs.llvm.org/show_bug.cgi?id=51911">51911</a>
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<th>Summary</th>
<td>parameter pack expansion incorrectly when there is default parameter during template specialization
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<th>Product</th>
<td>clang
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<th>Version</th>
<td>trunk
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<th>Hardware</th>
<td>PC
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<th>OS</th>
<td>Linux
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>nickhuang99@hotmail.com
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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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<pre>The following code should NOT be accepted because parameter pack should be just
"int*" without "double" which is considered as "Extra".
template<class...Ts,class Extra, class First=char>
void foo(First, Extra, Ts...){}
template<>
void foo<int*,double>(char,double,int*,double){}
As a contrast, the following code is rejected which is wrong.
template<class...Ts,class Extra, class First=char>
void foo(First, Extra, Ts...){}
template<>
void foo<int*,double>(char,double,int*){}</pre>
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