https://svn.boost.org/trac10/ticket/2763 <p> This page: </p> <blockquote> <p> <a href="http://www.boost.org/doc/libs/1_38_0/doc/html/variant/tutorial.html">http://www.boost.org/doc/libs/1_38_0/doc/html/variant/tutorial.html</a> </p> </blockquote> <p> defines the following code snippet: </p> <blockquote> <p> void times_two( boost::variant&lt; int, std::string &gt; &amp; operand ) { </p> <blockquote> <p> if ( int* pi = boost::get&lt;int&gt;( &amp;v ) ) </p> <blockquote> <p> *pi *= 2; </p> </blockquote> <p> else if ( std::string* pstr = boost::get&lt;std::string&gt;( &amp;v ) ) </p> <blockquote> <p> *pstr += *pstr; </p> </blockquote> </blockquote> <p> } </p> </blockquote> <p> in which (1) 'v' is not defined and (2) 'operand' is not used. I suspect that this is not intentional, but rather, a mistake. Specifically, it seems that every occurrence of 'v' should be replaced by 'operand'. </p> en-us /htdocs/site/boost.png https://svn.boost.org/trac10/ticket/2763 Trac 1.4.3 Steven Watanabe Fri, 22 May 2009 18:48:34 GMT https://svn.boost.org/trac10/ticket/2763#comment:1 https://svn.boost.org/trac10/ticket/2763#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">duplicate</span> </li> </ul> <p> Duplicates <a class="closed ticket" href="https://svn.boost.org/trac10/ticket/1548" title="#1548: Bugs: [variant][docs]typo: formal arg, operand, should be v in times_two arglist (closed: fixed)">#1548</a>. </p> Ticket