<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/123074>123074</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            clang define `__cpp_pack_indexing` macro in both c++23 mode and c++20 mode
        </td>
    </tr>

    <tr>
      <th>Labels</th>
      <td>
      </td>
    </tr>

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

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

<pre>
    **whitch cause this issue**: https://github.com/fnc12/sqlite_orm/issues/1358

**godbolt**: https://godbolt.org/z/hs1KPfTrj

**screen shot:** 

**iknow clang defines some higher-version test macros even in lower c++ mode , but clang19 dosen't seem to support pack indexing yet still defines `cpp_pack_indexing`...**

**test link**: https://godbolt.org/z/74davPM8c
</pre>
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