1<html lang="en"> 2<head> 3<title>C Implementation - 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="prev" href="Invoking-GCC.html#Invoking-GCC" title="Invoking GCC"> 9<link rel="next" href="C-Extensions.html#C-Extensions" title="C Extensions"> 10<link href="http://www.gnu.org/software/texinfo/" rel="generator-home" title="Texinfo Homepage"> 11<!-- 12Copyright (C) 1988, 1989, 1992, 1993, 1994, 1995, 1996, 1997, 131998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 142010 Free Software Foundation, Inc. 15 16Permission is granted to copy, distribute and/or modify this document 17under the terms of the GNU Free Documentation License, Version 1.3 or 18any later version published by the Free Software Foundation; with the 19Invariant Sections being ``Funding Free Software'', the Front-Cover 20Texts being (a) (see below), and with the Back-Cover Texts being (b) 21(see below). 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The following lists all such areas, 63along with the section numbers from the ISO/IEC 9899:1990 and ISO/IEC 649899:1999 standards. Some areas are only implementation-defined in 65one version of the standard. 66 67 <p>Some choices depend on the externally determined ABI for the platform 68(including standard character encodings) which GCC follows; these are 69listed as “determined by ABI” below. See <a href="Compatibility.html#Compatibility">Binary Compatibility</a>, and <a href="http://gcc.gnu.org/readings.html">http://gcc.gnu.org/readings.html</a>. Some 70choices are documented in the preprocessor manual. 71See <a href="../cpp/Implementation_002ddefined-behavior.html#Implementation_002ddefined-behavior">Implementation-defined behavior</a>. Some choices are made by the 72library and operating system (or other environment when compiling for 73a freestanding environment); refer to their documentation for details. 74 75<ul class="menu"> 76<li><a accesskey="1" href="Translation-implementation.html#Translation-implementation">Translation implementation</a> 77<li><a accesskey="2" href="Environment-implementation.html#Environment-implementation">Environment implementation</a> 78<li><a accesskey="3" href="Identifiers-implementation.html#Identifiers-implementation">Identifiers implementation</a> 79<li><a accesskey="4" href="Characters-implementation.html#Characters-implementation">Characters implementation</a> 80<li><a accesskey="5" href="Integers-implementation.html#Integers-implementation">Integers implementation</a> 81<li><a accesskey="6" href="Floating-point-implementation.html#Floating-point-implementation">Floating point implementation</a> 82<li><a accesskey="7" href="Arrays-and-pointers-implementation.html#Arrays-and-pointers-implementation">Arrays and pointers implementation</a> 83<li><a accesskey="8" href="Hints-implementation.html#Hints-implementation">Hints implementation</a> 84<li><a accesskey="9" href="Structures-unions-enumerations-and-bit_002dfields-implementation.html#Structures-unions-enumerations-and-bit_002dfields-implementation">Structures unions enumerations and bit-fields implementation</a> 85<li><a href="Qualifiers-implementation.html#Qualifiers-implementation">Qualifiers implementation</a> 86<li><a href="Declarators-implementation.html#Declarators-implementation">Declarators implementation</a> 87<li><a href="Statements-implementation.html#Statements-implementation">Statements implementation</a> 88<li><a href="Preprocessing-directives-implementation.html#Preprocessing-directives-implementation">Preprocessing directives implementation</a> 89<li><a href="Library-functions-implementation.html#Library-functions-implementation">Library functions implementation</a> 90<li><a href="Architecture-implementation.html#Architecture-implementation">Architecture implementation</a> 91<li><a href="Locale_002dspecific-behavior-implementation.html#Locale_002dspecific-behavior-implementation">Locale-specific behavior implementation</a> 92</ul> 93 94 </body></html> 95 96