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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Pointer to local variable returned in llvm/lib/TextAPI/MachO/TextStub.cpp"
href="https://bugs.llvm.org/show_bug.cgi?id=45561">45561</a>
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<th>Summary</th>
<td>Pointer to local variable returned in llvm/lib/TextAPI/MachO/TextStub.cpp
</td>
</tr>
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<th>Product</th>
<td>libraries
</td>
</tr>
<tr>
<th>Version</th>
<td>trunk
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</td>
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<th>Status</th>
<td>NEW
</td>
</tr>
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<th>Severity</th>
<td>enhancement
</td>
</tr>
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<th>Priority</th>
<td>P
</td>
</tr>
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<th>Component</th>
<td>Support Libraries
</td>
</tr>
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<th>Assignee</th>
<td>unassignedbugs@nondot.org
</td>
</tr>
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<th>Reporter</th>
<td>m.gehre@gmx.de
</td>
</tr>
<tr>
<th>CC</th>
<td>llvm-bugs@lists.llvm.org
</td>
</tr></table>
<p>
<div>
<pre>llvm-project/llvm/lib/TextAPI/MachO/TextStub.cpp:416:14: warning: returning
address of local temporary object [-Wreturn-stack-address]
The code there is
```
static StringRef input(StringRef Scalar, void *, Target &Value) {
auto Result = Target::create(Scalar);
if (!Result)
return toString(Result.takeError());
```
The `toString` function returns a temporary std::string, so the return value of
`input` refers to a then-destroyed temporary std::string.
Was detected by clang 10 or later by adding `[[gsl::Pointer]]` to StringRef
(see <a href="https://reviews.llvm.org/D66443">https://reviews.llvm.org/D66443</a>).</pre>
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