Bug #1785: Introduce numext::rint.
This provides a new op that matches std::rint and previous behavior of
pround. Also adds corresponding unsupported/../Tensor op.
Performance is the same as e. g. floor (tested SSE/AVX).
diff --git a/doc/CoeffwiseMathFunctionsTable.dox b/doc/CoeffwiseMathFunctionsTable.dox
index 8186a52..ce2f5e0 100644
--- a/doc/CoeffwiseMathFunctionsTable.dox
+++ b/doc/CoeffwiseMathFunctionsTable.dox
@@ -395,6 +395,17 @@
<td>SSE4,AVX,ZVector (f,d)</td>
</tr>
<tr>
+ <td class="code">
+ \anchor cwisetable_rint
+ a.\link ArrayBase::rint rint\endlink(); \n
+ \link Eigen::rint rint\endlink(a);
+ </td>
+ <td>nearest integer, \n rounding to nearest even in halfway cases</td>
+ <td>built-in generic implementation using <a href="http://en.cppreference.com/w/cpp/numeric/math/rint">\c std::rint</a>
+ or <a href="http://en.cppreference.com/w/c/numeric/math/rint">\c rintf</a>; </td>
+ <td>SSE4,AVX (f,d)</td>
+</tr>
+<tr>
<th colspan="4">Floating point manipulation functions</th>
</tr>
<tr>