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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Warn when assigning to temporary"
href="https://bugs.llvm.org/show_bug.cgi?id=50438">50438</a>
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<th>Summary</th>
<td>Warn when assigning to temporary
</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>PC
</td>
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<th>OS</th>
<td>Linux
</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>C++
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
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<th>Reporter</th>
<td>davidfromonline@gmail.com
</td>
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<th>CC</th>
<td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
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<pre>I would like for there to be a warning that warns for the following code:
```
struct s {};
inline void f() {
s() = s();
}
```
I know that for a given type, I can prevent this from compiling if I give `s`
an lvalue-refererence-qualified assignment operator, but that requires writing
two assignment operators and two (sometimes three) constructors to get the
behavior I get today from not typing anything, and I have to apply it to every
type. It would be much nicer if I could just turn on a warning for this.
I don't know where this warning would belong in terms of `Wall` `Wextra` or
just `Weverything`. The only valid use case is if your assignment operator has
a side effect that you want.</pre>
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