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          <td class="memname">GLM_FUNC_DECL genType glm::prev_float </td>
          <td>(</td>
          <td class="paramtype">genType const &amp;&#160;</td>
          <td class="paramname"><em>x</em></td><td>)</td>
          <td></td>
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<p>Return the previous ULP value(s) before the input value(s). </p>
<dl class="section see"><dt>See Also</dt><dd><a class="el" href="a00184.html" title="Allow the measurement of the accuracy of a function