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    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Bad -> formatting if macro is used in trailing return function"
   href="https://bugs.llvm.org/show_bug.cgi?id=42150">42150</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>Bad -> formatting if macro is used in trailing return function
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>8.0
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Windows NT
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>normal
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>Formatter
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>reznak@cadwork.cz
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>djasper@google.com, klimek@google.com, llvm-bugs@lists.llvm.org
          </td>
        </tr></table>
      <p>
        <div>
        <pre>Hello,

if I use macro instead of "auto", arrow has no space before and after.

Tested here with 6.0.1 version: <a href="https://zed0.co.uk/clang-format-configurator/">https://zed0.co.uk/clang-format-configurator/</a>
Tested on Windows with clang-format version 8.0.0 (tags/RELEASE_800/final)

#define fn [[nodiscard]] auto
fn foo() -> Opt<Error> {
    return {};
}

auto bar() -> Opt<Error> {
    return {};
}

Is formatted as:

#define fn [[nodiscard]] auto
fn foo()->Opt<Error> {
    return {};
}

auto bar() -> Opt<Error> {
    return {};
}

Thank you</pre>
        </div>
      </p>


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