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diff --git a/share/doc/gcc/C_002b_002b-Extensions.html b/share/doc/gcc/C_002b_002b-Extensions.html new file mode 100644 index 0000000..112d0cc --- /dev/null +++ b/share/doc/gcc/C_002b_002b-Extensions.html @@ -0,0 +1,130 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- This file documents the use of the GNU compilers. + +Copyright (C) 1988-2023 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. --> +<!-- Created by GNU Texinfo 5.1, http://www.gnu.org/software/texinfo/ --> +<head> +<title>Using the GNU Compiler Collection (GCC): C++ Extensions</title> + +<meta name="description" content="Using the GNU Compiler Collection (GCC): C++ Extensions"> +<meta name="keywords" content="Using the GNU Compiler Collection (GCC): C++ Extensions"> +<meta name="resource-type" content="document"> +<meta name="distribution" content="global"> +<meta name="Generator" content="makeinfo"> +<meta http-equiv="Content-Type" content="text/html; charset=utf-8"> +<link href="index.html#Top" rel="start" title="Top"> +<link href="Indices.html#Indices" rel="index" title="Indices"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="index.html#Top" rel="up" title="Top"> +<link href="C_002b_002b-Volatiles.html#C_002b_002b-Volatiles" rel="next" title="C++ Volatiles"> +<link href="Binary-constants.html#Binary-constants" rel="previous" title="Binary constants"> +<style type="text/css"> +<!-- +a.summary-letter {text-decoration: none} +blockquote.smallquotation {font-size: smaller} +div.display {margin-left: 3.2em} +div.example {margin-left: 3.2em} +div.indentedblock {margin-left: 3.2em} +div.lisp {margin-left: 3.2em} +div.smalldisplay {margin-left: 3.2em} +div.smallexample {margin-left: 3.2em} +div.smallindentedblock {margin-left: 3.2em; font-size: smaller} +div.smalllisp {margin-left: 3.2em} +kbd {font-style:oblique} +pre.display {font-family: inherit} +pre.format {font-family: inherit} +pre.menu-comment {font-family: serif} +pre.menu-preformatted {font-family: serif} +pre.smalldisplay {font-family: inherit; font-size: smaller} +pre.smallexample {font-size: smaller} +pre.smallformat {font-family: inherit; font-size: smaller} +pre.smalllisp {font-size: smaller} +span.nocodebreak {white-space:nowrap} +span.nolinebreak {white-space:nowrap} +span.roman {font-family:serif; font-weight:normal} +span.sansserif {font-family:sans-serif; font-weight:normal} +ul.no-bullet {list-style: none} +--> +</style> + + +</head> + +<body lang="en_US" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> +<a name="C_002b_002b-Extensions"></a> +<div class="header"> +<p> +Next: <a href="Objective_002dC.html#Objective_002dC" accesskey="n" rel="next">Objective-C</a>, Previous: <a href="C-Extensions.html#C-Extensions" accesskey="p" rel="previous">C Extensions</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="Extensions-to-the-C_002b_002b-Language"></a> +<h2 class="chapter">7 Extensions to the C++ Language</h2> +<a name="index-extensions_002c-C_002b_002b-language"></a> +<a name="index-C_002b_002b-language-extensions"></a> + +<p>The GNU compiler provides these extensions to the C++ language (and you +can also use most of the C language extensions in your C++ programs). If you +want to write code that checks whether these features are available, you can +test for the GNU compiler the same way as for C programs: check for a +predefined macro <code>__GNUC__</code>. You can also use <code>__GNUG__</code> to +test specifically for GNU C++ (see <a href="http://gcc.gnu.org/onlinedocs/cpp/Common-Predefined-Macros.html#Common-Predefined-Macros">Predefined Macros</a> in <cite>The GNU C Preprocessor</cite>). +</p> +<table class="menu" border="0" cellspacing="0"> +<tr><td align="left" valign="top">• <a href="C_002b_002b-Volatiles.html#C_002b_002b-Volatiles" accesskey="1">C++ Volatiles</a>:</td><td> </td><td align="left" valign="top">What constitutes an access to a volatile object. +</td></tr> +<tr><td align="left" valign="top">• <a href="Restricted-Pointers.html#Restricted-Pointers" accesskey="2">Restricted Pointers</a>:</td><td> </td><td align="left" valign="top">C99 restricted pointers and references. +</td></tr> +<tr><td align="left" valign="top">• <a href="Vague-Linkage.html#Vague-Linkage" accesskey="3">Vague Linkage</a>:</td><td> </td><td align="left" valign="top">Where G++ puts inlines, vtables and such. +</td></tr> +<tr><td align="left" valign="top">• <a href="C_002b_002b-Interface.html#C_002b_002b-Interface" accesskey="4">C++ Interface</a>:</td><td> </td><td align="left" valign="top">You can use a single C++ header file for both + declarations and definitions. +</td></tr> +<tr><td align="left" valign="top">• <a href="Template-Instantiation.html#Template-Instantiation" accesskey="5">Template Instantiation</a>:</td><td> </td><td align="left" valign="top">Methods for ensuring that exactly one copy of + each needed template instantiation is emitted. +</td></tr> +<tr><td align="left" valign="top">• <a href="Bound-member-functions.html#Bound-member-functions" accesskey="6">Bound member functions</a>:</td><td> </td><td align="left" valign="top">You can extract a function pointer to the + method denoted by a ‘<samp>->*</samp>’ or ‘<samp>.*</samp>’ expression. +</td></tr> +<tr><td align="left" valign="top">• <a href="C_002b_002b-Attributes.html#C_002b_002b-Attributes" accesskey="7">C++ Attributes</a>:</td><td> </td><td align="left" valign="top">Variable, function, and type attributes for C++ only. +</td></tr> +<tr><td align="left" valign="top">• <a href="Function-Multiversioning.html#Function-Multiversioning" accesskey="8">Function Multiversioning</a>:</td><td> </td><td align="left" valign="top">Declaring multiple function versions. +</td></tr> +<tr><td align="left" valign="top">• <a href="Type-Traits.html#Type-Traits" accesskey="9">Type Traits</a>:</td><td> </td><td align="left" valign="top">Compiler support for type traits. +</td></tr> +<tr><td align="left" valign="top">• <a href="C_002b_002b-Concepts.html#C_002b_002b-Concepts">C++ Concepts</a>:</td><td> </td><td align="left" valign="top">Improved support for generic programming. +</td></tr> +<tr><td align="left" valign="top">• <a href="Deprecated-Features.html#Deprecated-Features">Deprecated Features</a>:</td><td> </td><td align="left" valign="top">Things will disappear from G++. +</td></tr> +<tr><td align="left" valign="top">• <a href="Backwards-Compatibility.html#Backwards-Compatibility">Backwards Compatibility</a>:</td><td> </td><td align="left" valign="top">Compatibilities with earlier definitions of C++. +</td></tr> +</table> + +<hr> +<div class="header"> +<p> +Next: <a href="Objective_002dC.html#Objective_002dC" accesskey="n" rel="next">Objective-C</a>, Previous: <a href="C-Extensions.html#C-Extensions" accesskey="p" rel="previous">C Extensions</a>, Up: <a href="index.html#Top" accesskey="u" rel="up">Top</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Indices.html#Indices" title="Index" rel="index">Index</a>]</p> +</div> + + + +</body> +</html> |