96 lines
4.3 KiB
HTML
96 lines
4.3 KiB
HTML
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<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd">
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<html>
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<!-- Copyright (C) 1988-2016 Free Software Foundation, Inc.
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Permission is granted to copy, distribute and/or modify this document
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under the terms of the GNU Free Documentation License, Version 1.3 or
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any later version published by the Free Software Foundation; with the
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Invariant Sections being "Funding Free Software", the Front-Cover
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Texts being (a) (see below), and with the Back-Cover Texts being (b)
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(see below). A copy of the license is included in the section entitled
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"GNU Free Documentation License".
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(a) The FSF's Front-Cover Text is:
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A GNU Manual
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(b) The FSF's Back-Cover Text is:
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You have freedom to copy and modify this GNU Manual, like GNU
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software. Copies published by the Free Software Foundation raise
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funds for GNU development. -->
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<!-- Created by GNU Texinfo 5.2, http://www.gnu.org/software/texinfo/ -->
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<head>
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<title>Using the GNU Compiler Collection (GCC): Darwin Format Checks</title>
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<meta name="description" content="Using the GNU Compiler Collection (GCC): Darwin Format Checks">
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<meta name="keywords" content="Using the GNU Compiler Collection (GCC): Darwin Format Checks">
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<meta name="distribution" content="global">
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<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
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<link href="index.html#Top" rel="start" title="Top">
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<link href="Option-Index.html#Option-Index" rel="index" title="Option Index">
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<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents">
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<link href="Target-Format-Checks.html#Target-Format-Checks" rel="up" title="Target Format Checks">
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<link href="Pragmas.html#Pragmas" rel="next" title="Pragmas">
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<link href="Solaris-Format-Checks.html#Solaris-Format-Checks" rel="prev" title="Solaris Format Checks">
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</style>
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</head>
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<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
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<a name="Darwin-Format-Checks"></a>
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<div class="header">
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<p>
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Previous: <a href="Solaris-Format-Checks.html#Solaris-Format-Checks" accesskey="p" rel="prev">Solaris Format Checks</a>, Up: <a href="Target-Format-Checks.html#Target-Format-Checks" accesskey="u" rel="up">Target Format Checks</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Option-Index.html#Option-Index" title="Index" rel="index">Index</a>]</p>
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</div>
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<hr>
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<a name="Darwin-Format-Checks-1"></a>
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<h4 class="subsection">6.60.2 Darwin Format Checks</h4>
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<p>Darwin targets support the <code>CFString</code> (or <code>__CFString__</code>) in the format
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attribute context. Declarations made with such attribution are parsed for correct syntax
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and format argument types. However, parsing of the format string itself is currently undefined
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and is not carried out by this version of the compiler.
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</p>
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<p>Additionally, <code>CFStringRefs</code> (defined by the <code>CoreFoundation</code> headers) may
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also be used as format arguments. Note that the relevant headers are only likely to be
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available on Darwin (OSX) installations. On such installations, the XCode and system
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documentation provide descriptions of <code>CFString</code>, <code>CFStringRefs</code> and
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associated functions.
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</p>
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</body>
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</html>
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