Boost C++ Libraries: Ticket #4227: operator safe bool https://svn.boost.org/trac10/ticket/4227 <p> See <a class="ext-link" href="https://svn.boost.org/trac/boost/ticket/4226"><span class="icon">​</span>https://svn.boost.org/trac/boost/ticket/4226</a> </p> en-us Boost C++ Libraries /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/4227 Trac 1.4.3 akrzemi1 Fri, 23 May 2014 12:37:16 GMT status, milestone changed; resolution set https://svn.boost.org/trac10/ticket/4227#comment:1 https://svn.boost.org/trac10/ticket/4227#comment:1 <ul> <li><strong>status</strong> <span class="trac-field-old">new</span> → <span class="trac-field-new">closed</span> </li> <li><strong>resolution</strong> → <span class="trac-field-new">fixed</span> </li> <li><strong>milestone</strong> <span class="trac-field-old">Boost 1.43.0</span> → <span class="trac-field-new">Boost 1.56.0</span> </li> </ul> <p> explicit operator bool() implemented in branch 'master'. also, forward declaring operator&lt;&lt;(ostream&amp;), in order to avoid inadvertent conversion on compilers w/o explicit conversion operators. </p> Ticket