projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | <html> |
| 2 | <head> | |
| 3 | <meta http-equiv="Content-Type" content="text/html; charset=US-ASCII"> | |
| 4 | <title>New</title> | |
| 5 | <link rel="stylesheet" href="../../../../../../../doc/src/boostbook.css" type="text/css"> | |
| 6 | <meta name="generator" content="DocBook XSL Stylesheets V1.75.2"> | |
| 7 | <link rel="home" href="../../../index.html" title="Chapter 1. Phoenix 3.2.0"> | |
| 8 | <link rel="up" href="../object.html" title="Object"> | |
| 9 | <link rel="prev" href="construction.html" title="Construction"> | |
| 10 | <link rel="next" href="delete.html" title="Delete"> | |
| 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="construction.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../object.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="delete.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> | |
| 24 | </div> | |
| 25 | <div class="section"> | |
| 26 | <div class="titlepage"><div><div><h4 class="title"> | |
| 27 | <a name="phoenix.modules.object.new"></a><a class="link" href="new.html" title="New">New</a> | |
| 28 | </h4></div></div></div> | |
| 29 | <p> | |
| 30 | <span class="bold"><strong><span class="emphasis"><em>Lazy new...</em></span></strong></span> | |
| 31 | </p> | |
| 32 | <pre class="programlisting"><span class="preprocessor">#include</span> <span class="special"><</span><span class="identifier">boost</span><span class="special">/</span><span class="identifier">phoenix</span><span class="special">/</span><span class="identifier">object</span><span class="special">/</span><span class="keyword">new</span><span class="special">.</span><span class="identifier">hpp</span><span class="special">></span> | |
| 33 | </pre> | |
| 34 | <p> | |
| 35 | Lazily construct an object, on the heap, from an arbitrary set of arguments: | |
| 36 | </p> | |
| 37 | <pre class="programlisting"><span class="identifier">new_</span><span class="special"><</span><span class="identifier">T</span><span class="special">>(</span><span class="identifier">ctor_arg1</span><span class="special">,</span> <span class="identifier">ctor_arg2</span><span class="special">,</span> <span class="special">...,</span> <span class="identifier">ctor_argN</span><span class="special">);</span> | |
| 38 | </pre> | |
| 39 | <p> | |
| 40 | where the given parameters are the parameters to the contractor of the | |
| 41 | object of type T (This implies, that type T is expected to have a constructor | |
| 42 | with a corresponding set of parameter types.). | |
| 43 | </p> | |
| 44 | <p> | |
| 45 | Example: | |
| 46 | </p> | |
| 47 | <pre class="programlisting"><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">// note the spelling of new_ (with trailing underscore)</span> | |
| 48 | </pre> | |
| 49 | <p> | |
| 50 | Creates a <code class="computeroutput"><span class="identifier">std</span><span class="special">::</span><span class="identifier">string</span></code> from <code class="computeroutput"><span class="identifier">arg1</span></code> | |
| 51 | and <code class="computeroutput"><span class="identifier">arg2</span></code> on the heap. | |
| 52 | </p> | |
| 53 | <div class="note"><table border="0" summary="Note"> | |
| 54 | <tr> | |
| 55 | <td rowspan="2" align="center" valign="top" width="25"><img alt="[Note]" src="../../../../../../../doc/src/images/note.png"></td> | |
| 56 | <th align="left">Note</th> | |
| 57 | </tr> | |
| 58 | <tr><td align="left" valign="top"><p> | |
| 59 | The maximum number of actual parameters is limited by the preprocessor | |
| 60 | constant BOOST_PHOENIX_COMPOSITE_LIMIT. Note though, that this limit | |
| 61 | should not be greater than BOOST_PHOENIX_LIMIT. By default, <code class="computeroutput"><span class="identifier">BOOST_PHOENIX_COMPOSITE_LIMIT</span></code> is set | |
| 62 | to <code class="computeroutput"><span class="identifier">BOOST_PHOENIX_LIMIT</span></code> | |
| 63 | (See <a class="link" href="../../actor.html" title="Actor">Actor</a>). | |
| 64 | </p></td></tr> | |
| 65 | </table></div> | |
| 66 | </div> | |
| 67 | <table xmlns:rev="http://www.cs.rpi.edu/~gregod/boost/tools/doc/revision" width="100%"><tr> | |
| 68 | <td align="left"></td> | |
| 69 | <td align="right"><div class="copyright-footer">Copyright © 2002-2005, 2010, 2014, 2015 Joel de Guzman, Dan Marsden, Thomas | |
| 70 | Heller, John Fletcher<p> | |
| 71 | Distributed under the Boost Software License, Version 1.0. (See accompanying | |
| 72 | 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>) | |
| 73 | </p> | |
| 74 | </div></td> | |
| 75 | </tr></table> | |
| 76 | <hr> | |
| 77 | <div class="spirit-nav"> | |
| 78 | <a accesskey="p" href="construction.html"><img src="../../../../../../../doc/src/images/prev.png" alt="Prev"></a><a accesskey="u" href="../object.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="delete.html"><img src="../../../../../../../doc/src/images/next.png" alt="Next"></a> | |
| 79 | </div> | |
| 80 | </body> | |
| 81 | </html> |