gnitude) of the argument <code>x</code>,
by direct manipulation of the bit representation of <code>x</code>.</p>
</td></tr><tr class='module-item'><td><a class="fn" href="fn.fdim.html" title='libm::fdim fn'>fdim</a></td><td class='docblock-short'><p>Positive difference (f64)</p>
</td></tr><tr class='module-item'><td><a class="fn" href="fn.fdimf.html" title='libm::fdimf fn'>fdimf</a></td><td class='docblock-short'><p>Positive difference (f32)</p>
</td></tr><tr class='module-item'><td><a class="fn" href="fn.f