Hi,<br><br>I&#39;ve noticed there are two free functions row() and column() overloaded on the const-ness of the matrix, but there is no shortcut to force creating a row or column proxy on a const matrix from a non-const matrix.<br>
<br>I&#39;d like to propose adding two more free functions ublas::crow() and ublas::ccolumn(), following the style of boost::cref() (wrt boost::ref) or the C++0x cbegin() and co. Better names are a possibility, maybe const_row() and const_column()?<br>
<br>I can even suggest some code, hopefully correct:<br><br>template&lt;class M&gt;<br>    BOOST_UBLAS_INLINE<br>    const matrix_row&lt;const M&gt; crow (M &amp;data, typename M::size_type i) {<br>        return matrix_row&lt;const M&gt; (data, i);<br>
    }<br><br>template&lt;class M&gt;<br>    BOOST_UBLAS_INLINE<br>    const matrix_column&lt;const M&gt; ccolumn (M &amp;data, typename M::size_type j) {<br>        return matrix_column&lt;const M&gt; (data, j);<br>    }<br>
<br>Do you think this is worth having in Boost.Ublas?<br><br>