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<base href="https://llvm.org/bugs/" />
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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW " title="NEW --- - unexpected syntax error: operator[] mistaken for lambda capture" href="https://urldefense.proofpoint.com/v2/url?u=https-3A__llvm.org_bugs_show-5Fbug.cgi-3Fid-3D24161&d=AwMBaQ&c=8hUWFZcy2Z-Za5rBPlktOQ&r=pF93YEPyB-J_PERP4DUZOJDzFVX5ZQ57vQk33wu0vio&m=gdfI5iBbrVEi7ZHHbxVUZR_99j4B-Pv9DaJM4952Udo&s=MQGn1iOzYeVKI4eVi8qbyqErOlI8zX7lEq_WtcHQpYo&e=">24161</a>
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<th>Summary</th>
<td>unexpected syntax error: operator[] mistaken for lambda capture
</td>
</tr>
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<th>Product</th>
<td>clang
</td>
</tr>
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<th>Version</th>
<td>3.4
</td>
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<th>Hardware</th>
<td>Macintosh
</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>normal
</td>
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<th>Priority</th>
<td>P
</td>
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<th>Component</th>
<td>C++11
</td>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
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<th>Reporter</th>
<td>sherm1@gmail.com
</td>
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<th>CC</th>
<td>dgregor@apple.com, llvmbugs@cs.uiuc.edu
</td>
</tr>
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=14603" name="attach_14603" title="Reproduces unexpected syntax error">attachment 14603</a> <a href="attachment.cgi?id=14603&action=edit" title="Reproduces unexpected syntax error">[details]</a></span>
Reproduces unexpected syntax error
Vec is a class that has a default constructor and operator[](int) defined. This
construct (resulting from a macro expansion) fails to compile with clang 3.4
C++11, but succeeds with gcc 4.8.2 and VS2015:
if ((std::abs(((Vec())[0]))/3. > 0))
printf("hi\n");
The error is:
c++ -std=c++11 crash2.cpp
crash2.cpp:61:28: error: expected variable name or 'this' in lambda capture
list
if ((std::abs(((Vec())[0]))/3. > 0))
^
Removing the extra set of parentheses around Vec() eliminates the error.
I've attached a complete program that fails to compile.</pre>
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