1<html> 2<head> 3<meta http-equiv="Content-Type" content="text/html; charset=UTF-8"> 4<title>Construct, New, Delete, Casts</title> 5<link rel="stylesheet" href="../../../../../../doc/src/boostbook.css" type="text/css"> 6<meta name="generator" content="DocBook XSL Stylesheets V1.79.1"> 7<link rel="home" href="../../index.html" title="Chapter 1. Phoenix 3.2.0"> 8<link rel="up" href="../starter_kit.html" title="Starter Kit"> 9<link rel="prev" href="lazy_statements.html" title="Lazy Statements"> 10<link rel="next" href="lazy_functions.html" title="Lazy Functions"> 11</head> 12<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF"> 13<table cellpadding="2" width="100%"><tr> 14<td valign="top"><img alt="Boost C++ Libraries" width="277" height="86" src="../../../../../../boost.png"></td> 15<td align="center"><a href="../../../../../../index.html">Home</a></td> 16<td align="center"><a href="../../../../../../libs/libraries.htm">Libraries</a></td> 17<td align="center"><a href="http://www.boost.org/users/people.html">People</a></td> 18<td align="center"><a href="http://www.boost.org/users/faq.html">FAQ</a></td> 19<td align="center"><a href="../../../../../../more/index.htm">More</a></td> 20</tr></table> 21<hr> 22<div class="spirit-nav"> 23<a accesskey="p" href="lazy_statements.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../starter_kit.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="lazy_functions.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 24</div> 25<div class="section"> 26<div class="titlepage"><div><div><h3 class="title"> 27<a name="phoenix.starter_kit.construct__new__delete__casts"></a><a class="link" href="construct__new__delete__casts.html" title="Construct, New, Delete, Casts">Construct, 28 New, Delete, Casts</a> 29</h3></div></div></div> 30<p> 31 You'll probably want to work with objects. There are lazy versions of constructor 32 calls, <code class="computeroutput"><span class="keyword">new</span></code>, <code class="computeroutput"><span class="keyword">delete</span></code> 33 and the suite of C++ casts. Examples: 34 </p> 35<pre class="programlisting"><span class="identifier">construct</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">>(</span><span class="identifier">arg1</span><span class="special">,</span> <span class="identifier">arg2</span><span class="special">)</span> <span class="comment">// constructs a std::string from arg1, arg2</span> 36<span class="identifier">new_</span><span class="special"><</span><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span><span class="special">>(</span><span class="identifier">arg1</span><span class="special">,</span> <span class="identifier">arg2</span><span class="special">)</span> <span class="comment">// makes a new std::string from arg1, arg2</span> 37<span class="identifier">delete_</span><span class="special">(</span><span class="identifier">arg1</span><span class="special">)</span> <span class="comment">// deletes arg1 (assumed to be a pointer)</span> 38<span class="identifier">static_cast_</span><span class="special"><</span><span class="keyword">int</span><span class="special">*>(</span><span class="identifier">arg1</span><span class="special">)</span> <span class="comment">// static_cast's arg1 to an int*</span> 39</pre> 40<div class="note"><table border="0" summary="Note"> 41<tr> 42<td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../doc/src/images/note.png"></td> 43<th align="left">Note</th> 44</tr> 45<tr><td align="left" valign="top"><p> 46 Take note that, by convention, names that conflict with C++ reserved words 47 are appended with a single trailing underscore <code class="computeroutput"><span class="char">'_'</span></code> 48 </p></td></tr> 49</table></div> 50<div class="blurb"> 51<div class="titlepage"><div><div><p class="title"><b></b></p></div></div></div> 52<p> 53 <span class="inlinemediaobject"><img src="../../images/tip.png"></span> 54 Learn more about this <a class="link" href="../modules/object.html" title="Object">here.</a> 55 </p> 56</div> 57</div> 58<table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> 59<td align="left"></td> 60<td align="right"><div class="copyright-footer">Copyright © 2002-2005, 2010, 2014, 2015 Joel de Guzman, Dan Marsden, Thomas 61 Heller, John Fletcher<p> 62 Distributed under the Boost Software License, Version 1.0. (See accompanying 63 file LICENSE_1_0.txt or copy at <a href="http://www.boost.org/LICENSE_1_0.txt" target="_top">http://www.boost.org/LICENSE_1_0.txt</a>) 64 </p> 65</div></td> 66</tr></table> 67<hr> 68<div class="spirit-nav"> 69<a accesskey="p" href="lazy_statements.html"><img src="../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../starter_kit.html"><img src="../../../../../../doc/src/images/up.png" alt="Up"></a><a accesskey="h" href="../../index.html"><img src="../../../../../../doc/src/images/home.png" alt="Home"></a><a accesskey="n" href="lazy_functions.html"><img src="../../../../../../doc/src/images/next.png" alt="Next"></a> 70</div> 71</body> 72</html> 73
