<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/94155>94155</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [clang-format] feature request: prevent indentation of some nested for loops
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
            clang-format
      </td>
    </tr>

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

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

<pre>
    My code base contains loops such as 

```
for (int i = 0; i < dim_x; i++)
for (int j = 0; j < dim_y; j++)
for (int k = 0; k < dim_z; k++)
{
    table[i][j] = 0
}
```

Though opinions may vary, this style is not particularly exotic and I personally find it more readable and easier to debug than, say,

```
for (int i = 0; i < dim_x; i++) 
{
    for (int j = 0; j < dim_y; j++)
    {
        for (int k = 0; k < dim_z; k++)
        {
            table[i][j] = 0
 }
    }
}
```

Currently, clang-format does not support any option that would support the first style. 

Generalizing from this example, the for loop style applies if only the inner-most loop contains a non-loop statement. My suggested compact option to achieve would be something like:

> If a for loop contains only another for loop (and no other statements), then put both loops on the same indentation level and do not use brackets.

</pre>
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