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<th>Bug ID</th>
<td><a class="bz_bug_link
bz_status_NEW "
title="NEW - Clang-Format fails with multi-line comments"
href="https://bugs.llvm.org/show_bug.cgi?id=35262">35262</a>
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<th>Summary</th>
<td>Clang-Format fails with multi-line comments
</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>
<tr>
<th>Hardware</th>
<td>All
</td>
</tr>
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<th>OS</th>
<td>All
</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>Formatter
</td>
</tr>
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<th>Assignee</th>
<td>unassignedclangbugs@nondot.org
</td>
</tr>
<tr>
<th>Reporter</th>
<td>alex@grundis.de
</td>
</tr>
<tr>
<th>CC</th>
<td>djasper@google.com, klimek@google.com, llvm-bugs@lists.llvm.org
</td>
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<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=19392" name="attach_19392" title="File to test">attachment 19392</a> <a href="attachment.cgi?id=19392&action=edit" title="File to test">[details]</a></span>
File to test
Clang-format fails when using multi-line comments in a define where it should
align the escaped newlines.
There are 2 possible failures:
- It fails to format the code in question completely (mostly untouched)
- It adds another escaped newline. And again on next format, and again, and
again...
Testcase that triggers both:
#define FOO \
/* \
* Multi-line-comment: \
*/
#define BAR \
/*\
* Multi-line-comment\
*/
Save as clangFormat.cpp (see attachment) and run `clang-format.exe
-style="{AlignEscapedNewlines: Left}" clangFormat.cpp`
Result:
#define FOO \
/* \ \
* Multi-line-comment: \ \
*/
#define BAR \
/*\
* Multi-line-comment\
*/
On a related note: It will also add an extra newline before an opening brace in
a define and again fail to align the escaped newlines:
#define BAR \
{\
}
->
#define BAR \
\
{\
}</pre>
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