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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 --- - Inconsistent lambda capture list formatting with trailing return type deduction"
href="https://llvm.org/bugs/show_bug.cgi?id=28590">28590</a>
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<th>Summary</th>
<td>Inconsistent lambda capture list formatting with trailing return type deduction
</td>
</tr>
<tr>
<th>Product</th>
<td>clang
</td>
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<th>Version</th>
<td>3.8
</td>
</tr>
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<th>Hardware</th>
<td>PC
</td>
</tr>
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<th>OS</th>
<td>Linux
</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>vittorio.romeo@outlook.com
</td>
</tr>
<tr>
<th>CC</th>
<td>djasper@google.com, klimek@google.com, llvm-bugs@lists.llvm.org
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<th>Classification</th>
<td>Unclassified
</td>
</tr></table>
<p>
<div>
<pre>Created <span class=""><a href="attachment.cgi?id=16756" name="attach_16756" title="Code example">attachment 16756</a> <a href="attachment.cgi?id=16756&action=edit" title="Code example">[details]</a></span>
Code example
Consider the following code, formatted by `clang-format`:
---
int main()
{
int x, y;
auto l0 = [x, y](auto z)
{ /* ... */ };
auto l1 = [x, y](auto z) -> int
{ /* ... */ };
auto l2 = [ x, y ](auto z) -> auto {/* ... */};
}
---
* Lambdas with no trailing return type are formatted as expected.
* Lambdas with a non-`auto` trailing return type are formatted as expected.
* (!) Lambdas with an `auto` trailing return type are inconsistently formatted.
A space is added in the capture list and line breaks are not respected.
Removing the `-> auto` or changing `auto` to `int` allows the lambda to be
formatted as expected.
Might be related to <a class="bz_bug_link
bz_status_NEW "
title="NEW --- - lamda is incorrectly formatted when there are other arguments in a function to which lambda is passed"
href="show_bug.cgi?id=20450">bug #20450</a>:
<a class="bz_bug_link
bz_status_NEW "
title="NEW --- - lamda is incorrectly formatted when there are other arguments in a function to which lambda is passed"
href="show_bug.cgi?id=20450">https://llvm.org/bugs/show_bug.cgi?id=20450</a></pre>
</div>
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