https://svn.boost.org/trac10/ticket/11563 <p> The following code sums up the problem, I think neither the behavior of &lt;= 1.55 nor the one of &gt;= 1.56 is desirable: </p> <pre class="wiki">#include &lt;boost/range/join.hpp&gt; #include &lt;iostream&gt; #include &lt;vector&gt; template &lt;typename T&gt; void p(T const&amp; t) { for(const auto i: t) { std::cout &lt;&lt; i &lt;&lt; '\n'; } } int main() { std::vector&lt;int&gt; u(8, 0); // Make this const and it works. const std::vector&lt;int&gt; v(8, 0); p(boost::range::join(v, u)); // This does not work &lt;= 1.55 but works &gt;= 1.56 p(boost::range::join(u, v)); // This does not work &gt;= 1.56 but works &lt;= 1.55 return 0; } </pre><p> Also see <a class="ext-link" href="http://melpon.org/wandbox/permlink/QuyJGrrLq3liyKDf"><span class="icon">​</span>http://melpon.org/wandbox/permlink/QuyJGrrLq3liyKDf</a> for easier trial and error. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/11563 Trac 1.4.3 Michel Morin Fri, 21 Aug 2015 12:48:54 GMT