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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Strange note when calling lvalue-qualified method on rvalue"
href="https://bugs.llvm.org/show_bug.cgi?id=47791">47791</a>
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<th>Summary</th>
<td>Strange note when calling lvalue-qualified method on rvalue
</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
</td>
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<th>Status</th>
<td>NEW
</td>
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<th>Severity</th>
<td>enhancement
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>Frontend
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>aaronpuchert@alice-dsl.net
</td>
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<th>CC</th>
<td>llvm-bugs@lists.llvm.org, neeilans@live.com, richard-llvm@metafoo.co.uk
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<p>
<div>
<pre>When compiling this with -fsyntax-only:
struct X {
X& operator=(const X&) &;
};
X f();
void g(const X& x) {
f() = x;
}
We get
<stdin>:7:9: error: no viable overloaded '='
f() = 2;
~~~ ^ ~
<stdin>:2:8: note: candidate function not viable: no known conversion from 'X'
to 'X' for object argument
X& operator=(const X&) &;
^
The error is expected, but the note is confusing: why would we need a
conversion from 'X' to 'X'? The problem here is not the type, but the value
category.</pre>
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</p>
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