1<html lang="en"> 2<head> 3<title>@@encode - Using the GNU Compiler Collection (GCC)</title> 4<meta http-equiv="Content-Type" content="text/html"> 5<meta name="description" content="Using the GNU Compiler Collection (GCC)"> 6<meta name="generator" content="makeinfo 4.13"> 7<link title="Top" rel="start" href="index.html#Top"> 8<link rel="up" href="Type-encoding.html#Type-encoding" title="Type encoding"> 9<link rel="prev" href="Legacy-type-encoding.html#Legacy-type-encoding" title="Legacy type encoding"> 10<link rel="next" href="Method-signatures.html#Method-signatures" title="Method signatures"> 11<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> 12<!-- 13Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 141998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 152010 Free Software Foundation, Inc. 16 17Permission is granted to copy, distribute and/or modify this document 18under the terms of the GNU Free Documentation License, Version 1.3 or 19any later version published by the Free Software Foundation; with the 20Invariant Sections being ``Funding Free Software'', the Front-Cover 21Texts being (a) (see below), and with the Back-Cover Texts being (b) 22(see below). A copy of the license is included in the section entitled 23``GNU Free Documentation License''. 24 25(a) The FSF's Front-Cover Text is: 26 27 A GNU Manual 28 29(b) The FSF's Back-Cover Text is: 30 31 You have freedom to copy and modify this GNU Manual, like GNU 32 software. Copies published by the Free Software Foundation raise 33 funds for GNU development.--> 34<meta http-equiv="Content-Style-Type" content="text/css"> 35<style type="text/css"><!-- 36 pre.display { font-family:inherit } 37 pre.format { font-family:inherit } 38 pre.smalldisplay { font-family:inherit; font-size:smaller } 39 pre.smallformat { font-family:inherit; font-size:smaller } 40 pre.smallexample { font-size:smaller } 41 pre.smalllisp { font-size:smaller } 42 span.sc { font-variant:small-caps } 43 span.roman { font-family:serif; font-weight:normal; } 44 span.sansserif { font-family:sans-serif; font-weight:normal; } 45--></style> 46<link rel="stylesheet" type="text/css" href="../cs.css"> 47</head> 48<body> 49<div class="node"> 50<a name="%40encode"></a> 51<a name="g_t_0040encode"></a> 52<p> 53Next: <a rel="next" accesskey="n" href="Method-signatures.html#Method-signatures">Method signatures</a>, 54Previous: <a rel="previous" accesskey="p" href="Legacy-type-encoding.html#Legacy-type-encoding">Legacy type encoding</a>, 55Up: <a rel="up" accesskey="u" href="Type-encoding.html#Type-encoding">Type encoding</a> 56<hr> 57</div> 58 59<h4 class="subsection">8.3.2 @encode</h4> 60 61<p>GNU Objective-C supports the <code>@encode</code> syntax that allows you to 62create a type encoding from a C/Objective-C type. For example, 63<code>@encode(int)</code> is compiled by the compiler into <code>"i"</code>. 64 65 <p><code>@encode</code> does not support type qualifiers other than 66<code>const</code>. For example, <code>@encode(const char*)</code> is valid and 67is compiled into <code>"r*"</code>, while <code>@encode(bycopy char *)</code> is 68invalid and will cause a compilation error. 69 70 </body></html> 71 72