<html lang="en"> <head> <title>@@encode - Using the GNU Compiler Collection (GCC)</title> <meta http-equiv="Content-Type" content="text/html"> <meta name="description" content="Using the GNU Compiler Collection (GCC)"> <meta name="generator" content="makeinfo 4.13"> <link title="Top" rel="start" href="index.html#Top"> <link rel="up" href="Type-encoding.html#Type-encoding" title="Type encoding"> <link rel="prev" href="Legacy-type-encoding.html#Legacy-type-encoding" title="Legacy type encoding"> <link rel="next" href="Method-signatures.html#Method-signatures" title="Method signatures"> <link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> <!-- Copyright (C) 1988-2015 Free Software Foundation, Inc. Permission is granted to copy, distribute and/or modify this document under the terms of the GNU Free Documentation License, Version 1.3 or any later version published by the Free Software Foundation; with the Invariant Sections being ``Funding Free Software'', the Front-Cover Texts being (a) (see below), and with the Back-Cover Texts being (b) (see below). A copy of the license is included in the section entitled ``GNU Free Documentation License''. (a) The FSF's Front-Cover Text is: A GNU Manual (b) The FSF's Back-Cover Text is: You have freedom to copy and modify this GNU Manual, like GNU software. Copies published by the Free Software Foundation raise funds for GNU development.--> <meta http-equiv="Content-Style-Type" content="text/css"> <style type="text/css"><!-- pre.display { font-family:inherit } pre.format { font-family:inherit } pre.smalldisplay { font-family:inherit; font-size:smaller } pre.smallformat { font-family:inherit; font-size:smaller } pre.smallexample { font-size:smaller } pre.smalllisp { font-size:smaller } span.sc { font-variant:small-caps } span.roman { font-family:serif; font-weight:normal; } span.sansserif { font-family:sans-serif; font-weight:normal; } --></style> </head> <body> <div class="node"> <a name="%40encode"></a> <a name="g_t_0040encode"></a> <p> Next: <a rel="next" accesskey="n" href="Method-signatures.html#Method-signatures">Method signatures</a>, Previous: <a rel="previous" accesskey="p" href="Legacy-type-encoding.html#Legacy-type-encoding">Legacy type encoding</a>, Up: <a rel="up" accesskey="u" href="Type-encoding.html#Type-encoding">Type encoding</a> <hr> </div> <h4 class="subsection">8.3.2 <code>@encode</code></h4> <p>GNU Objective-C supports the <code>@encode</code> syntax that allows you to create a type encoding from a C/Objective-C type. For example, <code>@encode(int)</code> is compiled by the compiler into <code>"i"</code>. <p><code>@encode</code> does not support type qualifiers other than <code>const</code>. For example, <code>@encode(const char*)</code> is valid and is compiled into <code>"r*"</code>, while <code>@encode(bycopy char *)</code> is invalid and will cause a compilation error. </body></html>