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<base href="http://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW --- - Cv-qualification mismatch in dependent pseudo-destructor call fails to reject candidate"
href="http://llvm.org/bugs/show_bug.cgi?id=20706">20706</a>
</td>
</tr>
<tr>
<th>Summary</th>
<td>Cv-qualification mismatch in dependent pseudo-destructor call fails to reject candidate
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
<tr>
<th>OS</th>
<td>All
</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>hstong@ca.ibm.com
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
<tr>
<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Cv-qualification mismatch on a pseudo-destructor call can appear in a SFINAE
context.
Notwithstanding Core Issue 1920, which does not have a proposed resolution as
of R90 of the issues list, the test case below should pass.
### SOURCE:
$ cat sfinaeStrictlyNo1920.cc
template <typename T, typename U = void>
struct A { typedef T ty; };
template <unsigned> struct NumSink { typedef void ty; };
typedef const int ConstInt;
template <typename T>
struct A<T, typename NumSink<sizeof (0 .ConstInt::~T(), 0)>::ty>
{ enum { val = 0 }; };
typedef A<int>::ty ty;
### COMPILER INVOCATION AND OUTPUT:
$ clang -cc1 -x c++ -std=c++03 sfinaeStrictlyNo1920.cc
sfinaeStrictlyNo1920.cc:12:9: error: no type named 'ty' in 'A<int, void>'; did
you mean 'NumSink<4>::ty'?
typedef A<int>::ty ty;
^~~~~~~~~~
NumSink<4>::ty
sfinaeStrictlyNo1920.cc:4:51: note: 'NumSink<4>::ty' declared here
template <unsigned> struct NumSink { typedef void ty; };
^
1 error generated.
### EXPECTED BEHAVIOUR:
Clean compile.
### COMPILER VERSION INFO:
$ clang -v
clang version 3.6.0 (trunk 215824)
Target: x86_64-unknown-linux-gnu
Thread model: posix
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.2
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.0
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Candidate multilib: .;@m64
Selected multilib: .;@m64</pre>
</div>
</p>
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