<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> <html xmlns="http://www.w3.org/1999/xhtml"> <head> <title>Class Poco::Any</title> <meta http-equiv="content-type" content="text/html; charset=utf-8"/> <meta name="author" content="Applied Informatics Software Engineering GmbH and Contributors"/> <meta name="publisher" content="Applied Informatics Software Engineering GmbH and Contributors"/> <meta name="copyright" content="Copyright (c) 2009, Applied Informatics Software Engineering GmbH and Contributors"/> <meta name="language" content="en"/> <meta name="date" content="2009-11-24"/> <meta name="generator" content="PocoDoc"/> <link rel="stylesheet" href="css/styles.css" type="text/css"/> </head> <body bgcolor="#ffffff" leftmargin="0" topmargin="0"> <div class="header"> <h1 class="namespace"><a href="Poco.html" class="namespace">Poco</a></h1> <h1 class="symbol">class Any</h1> </div> <div class="body"> <p> <b>Library:</b> Foundation<br /> <b>Package:</b> Core<br /> <b>Header:</b> Poco/Any.h</p> <h2>Description</h2> <div class="description"> <p>An <a href="Poco.Any.html" title="class Poco::Any">Any</a> class represents a general type and is capable of storing any type, supporting type-safe extraction of the internally stored data. </p> <p>Code taken from the Boost 1.33.1 library. Original copyright by Kevlin Henney. Modified for <a href="Poco.html" title="namespace Poco">Poco</a> by Applied Informatics. </p> </div> <h2>Member Summary</h2> <p><b>Member Functions: </b><a href="Poco.Any.html#3530" title="Poco::Any::empty()">empty</a>, <a href="Poco.Any.html#3526" title="Poco::Any::operator =()">operator =</a>, <a href="Poco.Any.html#3524" title="Poco::Any::swap()">swap</a>, <a href="Poco.Any.html#3531" title="Poco::Any::type()">type</a></p> <h2>Constructors</h2> <h3><a name="3518">Any</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.Any.html" title="class Poco::Any">Any</a>();</p> <div class="description"> <p>Creates an empty any type. </p> </div> <h3><a name="3519">Any</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">template < typename ValueType > <a href="Poco.Any.html" title="class Poco::Any">Any</a>(<br /> const ValueType & value<br />);</p> <div class="description"> <p>Creates an any which stores the init parameter inside. </p> <p>Example: </p> <pre>Any a(13); Any a(string("12345")); </pre> </div> <h3><a name="3521">Any</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.Any.html" title="class Poco::Any">Any</a>(<br /> const <a href="Poco.Any.html" title="class Poco::Any">Any</a> & other<br />);</p> <div class="description"> <p>Copy constructor, works with empty Anys and initialized <a href="Poco.Any.html" title="class Poco::Any">Any</a> values. </p> </div> <h2>Destructor</h2> <h3><a name="3523">~Any</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">~<a href="Poco.Any.html" title="class Poco::Any">Any</a>();</p> <div class="description"> <p></p> </div> <h2>Member Functions</h2> <h3><a name="3530">empty</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">bool empty() const;</p> <div class="description"> <p>returns true if the <a href="Poco.Any.html" title="class Poco::Any">Any</a> is empty </p> </div> <h3><a name="3526">operator =</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">template < typename ValueType > <a href="Poco.Any.html" title="class Poco::Any">Any</a> & operator = (<br /> const ValueType & rhs<br />);</p> <div class="description"> <p>Assignment operator for all types != <a href="Poco.Any.html" title="class Poco::Any">Any</a>. </p> <p>Example: </p> <pre>Any a = 13; Any a = string("12345"); </pre> </div> <h3><a name="3528">operator =</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.Any.html" title="class Poco::Any">Any</a> & operator = (<br /> const <a href="Poco.Any.html" title="class Poco::Any">Any</a> & rhs<br />);</p> <div class="description"> <p>Assignment operator for <a href="Poco.Any.html" title="class Poco::Any">Any</a>. </p> </div> <h3><a name="3524">swap</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl"><a href="Poco.Any.html" title="class Poco::Any">Any</a> & swap(<br /> <a href="Poco.Any.html" title="class Poco::Any">Any</a> & rhs<br />);</p> <div class="description"> <p>Swaps the content of the two Anys. </p> </div> <h3><a name="3531">type</a> <img src="images/inline.gif" alt="inline" title="inline" style="vertical-align:baseline;" border="0" /> </h3> <p class="decl">const std::type_info & type() const;</p> <div class="description"> <p>Returns the type information of the stored content. If the <a href="Poco.Any.html" title="class Poco::Any">Any</a> is empty typeid(void) is returned. It is suggested to always query an <a href="Poco.Any.html" title="class Poco::Any">Any</a> for its type info before trying to extract data via an <a href="Poco.Any.html#3542" title="Poco::Any::AnyCast()">AnyCast</a>/<a href="Poco.html#3555" title="Poco::RefAnyCast()">RefAnyCast</a>. </p> </div> <p class="footer">POCO C++ Libraries 1.3.6-all<br /> Copyright © 2009, <a href="http://pocoproject.org/" target="_blank">Applied Informatics Software Engineering GmbH and Contributors</a></p> </div> </body> </html>