<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/124348>124348</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [libc][wchar] implement wcsstr
        </td>
    </tr>

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

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

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

<pre>
    In order to build cxxabi, we need wcsstr. We also need wcstombs wired up to be able to test this. This should reuse our `inline_memmem` helper (I have a patch for this, but ran into the unit testing issue flagged above).

See also https://github.com/llvm/llvm-project/pull/121183.
</pre>
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