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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - error: use of overloaded operator '*' is ambiguous"
href="https://bugs.llvm.org/show_bug.cgi?id=36131">36131</a>
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<th>Summary</th>
<td>error: use of overloaded operator '*' is ambiguous
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>5.0
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
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<th>OS</th>
<td>Linux
</td>
</tr>
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<th>Status</th>
<td>NEW
</td>
</tr>
<tr>
<th>Severity</th>
<td>normal
</td>
</tr>
<tr>
<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>C++
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>stsp@list.ru
</td>
</tr>
<tr>
<th>CC</th>
<td>dgregor@apple.com, llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19762" name="attach_19762" title="test-case">attachment 19762</a> <a href="attachment.cgi?id=19762&action=edit" title="test-case">[details]</a></span>
test-case
The following code compiles with g++ but not clang++:
---
class A {
char a;
public:
operator char *() { return &a; }
template<typename T0>
operator T0 *() { return &a; }
};
int main()
{
A a;
return *a;
}
---
$ clang++ overl.cpp
overl.cpp:12:12: error: use of overloaded operator '*' is ambiguous
(operand type 'A')
return *a;
^~
overl.cpp:12:12: note: built-in candidate operator*(char *)
overl.cpp:12:12: note: built-in candidate operator*(const char *)
---
Initially I thought this may be a gcc bug.
This code is probably invalid.
But the interesting thing is that if I change
"T0" to "const char" in line 6 leaving line 5
untouched, then clang++ compiles it. I don't
think something should change if I change the
templated type to explicit type, so I think
this is a clang's bug.</pre>
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