<html>
<head>
<base href="https://llvm.org/bugs/" />
</head>
<body><table border="1" cellspacing="0" cellpadding="8">
<tr>
<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Argument deduction of template fails with variadic arguments in the middle"
href="https://llvm.org/bugs/show_bug.cgi?id=30575">30575</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Argument deduction of template fails with variadic arguments in the middle
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>3.8
</td>
</tr>
<tr>
<th>Hardware</th>
<td>PC
</td>
</tr>
<tr>
<th>OS</th>
<td>Windows NT
</td>
</tr>
<tr>
<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
<tr>
<th>Component</th>
<td>C++
</td>
</tr>
<tr>
<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>jvapen@gmail.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=17382" name="attach_17382" title="Full reproduction">attachment 17382</a> <a href="attachment.cgi?id=17382&action=edit" title="Full reproduction">[details]</a></span>
Full reproduction
On trying to compile an MSVC codebase with Clang-cl, we noticed that we are
making use of a construct which MSVC supports though ain't working with
clang-cl.
I'm not certain if this is valid c++ according to the standard, though, we are
using this construct several times, so working around it will be a pain.
The issue is that with following template:
template <typename TE, typename ... TA, typename Func>
D *func(C c, B b, typename AExpand<TA>::Type... a, Func f) { return nullptr; }
The argument Func doesn't get deduced correctly if called, while MSVC does
recognize this.</pre>
</div>
</p>
<hr>
<span>You are receiving this mail because:</span>
<ul>
<li>You are on the CC list for the bug.</li>
</ul>
</body>
</html>