<table border="1" cellspacing="0" cellpadding="8">
    <tr>
        <th>Issue</th>
        <td>
            <a href=https://github.com/llvm/llvm-project/issues/109201>109201</a>
        </td>
    </tr>

    <tr>
        <th>Summary</th>
        <td>
            [Libc] Implement Classification Macros
        </td>
    </tr>

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

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

    <tr>
      <th>Reporter</th>
      <td>
          Sh0g0-1758
      </td>
    </tr>
</table>

<pre>
    Refer section 7.12.3 of the [ISO spec](https://www.open-std.org/jtc1/sc22/wg14/www/docs/n3096.pdf). We still have some unimplemented math function macros. The following are to be implemented : 

- [ ] fpclassify
- [ ] iscanonical
- [ ] isnormal
- [ ] issignaling
- [ ] issubnormal
- [ ] iszero

cc : @lntue 
</pre>
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