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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - P0704R1 implementation is too permissive"
href="https://bugs.llvm.org/show_bug.cgi?id=34668">34668</a>
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<th>Summary</th>
<td>P0704R1 implementation is too permissive
</td>
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<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>trunk
</td>
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<th>Hardware</th>
<td>All
</td>
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<th>OS</th>
<td>All
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<th>Status</th>
<td>NEW
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<th>Severity</th>
<td>normal
</td>
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<th>Priority</th>
<td>P
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<th>Component</th>
<td>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>rs2740@gmail.com
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</tr>
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<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
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<p>
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<pre>P0704R1 only permits pointers to const & member functions to be used with
rvalues (i.e., the cv-qualifier-seq must be exactly const). const volatile &
member functions aren't included, as only lvalue reference to non-volatile
const types can bind to rvalues.
Clang's current implementation only checks for the presence of const:
struct F {
void y() const volatile &;
};
using t = decltype((F().*&F::y)());
This shouldn't compile but does on Clang trunk.</pre>
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