<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/62204>62204</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang format single line function incompatible with template headers breaks 
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            new issue
      </td>
    </tr>

    <tr>
      <th>Assignees</th>
      <td>
      </td>
    </tr>

    <tr>
      <th>Reporter</th>
      <td>
          dutkalex
      </td>
    </tr>
</table>

<pre>
    Hi! I have lots of very small functions of the following form in my codebase:
```cpp
template<typename T>
auto add(T const& lhs, T const& rho){ return lhs + rhs; }
```
I would like to format them in this compact way, but it seems like clang-format does not allow it. With `AlwaysBreakTemplateDeclarations` and `AllowShortFunctionsOnASingleLine` enabled, clang-format produces the following:
```cpp
template<typename T>
auto add(T const& lhs, T const& rho)
{ 
    return lhs + rhs;
}
```
To actually get clang-format to put the body on the same line, I have to disable `AlwaysBreakTemplateDeclarations`, which deteriorates the readability in my opinion:
```cpp
template<typename T> auto add(T const& lhs, T const& rho){ return lhs + rhs; }
```
To the best of my understanding, this problem also shows up for empty classes, and the following formatting is impossible to obtain:
```cpp
template<typename T>
class SomeEmptyClass {};
```
I don't know if this is a bug or just an oversight, but I think the function body and template header policies should not interfere with one another in this way...
Thank you in advance
</pre>
<img width="1px" height="1px" alt="" src="http://email.email.llvm.org/o/eJy8VU1v4zYQ_TX0ZRBDoh1_HHSIkzUaoEAPCdDzSBxbXFMcgTOKq39fUHJ2m3QPxQJdwIApfojvvXlvhCL-HIkqc38w908LHLTlVLlBLxjor0XNbqx-88aW8AwtvhEEVgE-wRulEaTDEOA0xEY9x2leW4ITh8BXH89w4tSBj9CN0LCjGoXM6sEUT6Z4MJti_jV9P88odX1AJbN61LGniB3Bq1l9mVdxUAZ0ztjdKzQcRY3dQGjF2Ef4x0xq2di92R4gkQ4p5i1g7AFSK2Z1ALN9-gRgfnyGKw_BQfAXAuUJO2omNFHQ1gs03PXYKFxxzLfWg4JXEKJO5nNNwHi-ux11TAKRFTDrAV6X8KfXFsymeAhXHOWQCC-vN9ZP1ARMOClpNgVgdPPOwNeXlpMe33X-Iz68-HgO9LuPlLdSxDqQy5A-AOgTu6Eh-ViVX1WB-Y7tAeYRAPy4Iu8bf1yWVwZsdMAQRjiTfiSoDP0w1QiyVYHjNJaMO2Rx7OO7cZXBeck6_Tf989Fr65sWHCklzwn1pmQidFj74HW8mZt7Hz3Hn1AW_m9bv_IsD4nmfHYjDNFREsXoshns42ztPnEdqAMMwiAtXwWGPocAqOt1zLqL0IQqO_PfOUfVPPQCvutZxGeplYFrRf8z0syr073wwh19yTgep0ezPWS-37zzOcmOo7FbhUvMuTvNDL0AQj2cgRN8HUQBI_AbJfHnVt_j_Jz3xsvM7xa42VsT6xtUaAkdJeg5-MaTZMFy78hh91EpnSgRXHPYORJgZG0pfWsjVxyXy-WtPi3GC4w85FV0bxgbWrhq5farPS6oKje7clfa3bZctJVtTptyW6-39e60xxNtG1s0pV0RFvvVvqgXvrKFXRXrclcW5XpVLt19eY8bt9rc25O168asC-rQh2UIb92S03nhRQaqNtYW60XAmoJMXwNrI11hWjTW5o9DqvKZu3o4i1kXwYvK97eo10DVFM73zilTj5py-F1KH6ceqpM7JoE-aSpQ51QKLIYUqla1l-wdezT2ePbaDvWy4c7YY7769nfXJ_5KjRp7nACLsceJ0N8BAAD__6IsPRs">