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| author | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
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| committer | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
| commit | abdaadbcae30fe0c9a66c7516798279fdfd97750 (patch) | |
| tree | 00a54a6e25601e43876d03c1a4a12a749d4a914c /share/doc/gcc/Deprecated-Features.html | |
https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads
Change-Id: I7303388733328cd98ab9aa3c30236db67f2e9e9c
Diffstat (limited to 'share/doc/gcc/Deprecated-Features.html')
| -rw-r--r-- | share/doc/gcc/Deprecated-Features.html | 125 |
1 files changed, 125 insertions, 0 deletions
diff --git a/share/doc/gcc/Deprecated-Features.html b/share/doc/gcc/Deprecated-Features.html new file mode 100644 index 0000000..066a4f0 --- /dev/null +++ b/share/doc/gcc/Deprecated-Features.html @@ -0,0 +1,125 @@ +<!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): Deprecated Features</title> + +<meta name="description" content="Using the GNU Compiler Collection (GCC): Deprecated Features"> +<meta name="keywords" content="Using the GNU Compiler Collection (GCC): Deprecated Features"> +<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="C_002b_002b-Extensions.html#C_002b_002b-Extensions" rel="up" title="C++ Extensions"> +<link href="Backwards-Compatibility.html#Backwards-Compatibility" rel="next" title="Backwards Compatibility"> +<link href="C_002b_002b-Concepts.html#C_002b_002b-Concepts" rel="previous" title="C++ Concepts"> +<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="Deprecated-Features"></a> +<div class="header"> +<p> +Next: <a href="Backwards-Compatibility.html#Backwards-Compatibility" accesskey="n" rel="next">Backwards Compatibility</a>, Previous: <a href="C_002b_002b-Concepts.html#C_002b_002b-Concepts" accesskey="p" rel="previous">C++ Concepts</a>, Up: <a href="C_002b_002b-Extensions.html#C_002b_002b-Extensions" accesskey="u" rel="up">C++ Extensions</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="Deprecated-Features-1"></a> +<h3 class="section">7.11 Deprecated Features</h3> + +<p>In the past, the GNU C++ compiler was extended to experiment with new +features, at a time when the C++ language was still evolving. Now that +the C++ standard is complete, some of those features are superseded by +superior alternatives. Using the old features might cause a warning in +some cases that the feature will be dropped in the future. In other +cases, the feature might be gone already. +</p> +<p>G++ allows a virtual function returning ‘<samp>void *</samp>’ to be overridden +by one returning a different pointer type. This extension to the +covariant return type rules is now deprecated and will be removed from a +future version. +</p> +<p>The use of default arguments in function pointers, function typedefs +and other places where they are not permitted by the standard is +deprecated and will be removed from a future version of G++. +</p> +<p>G++ allows floating-point literals to appear in integral constant expressions, +e.g. ‘<samp> enum E { e = int(2.2 * 3.7) } </samp>’ +This extension is deprecated and will be removed from a future version. +</p> +<p>G++ allows static data members of const floating-point type to be declared +with an initializer in a class definition. The standard only allows +initializers for static members of const integral types and const +enumeration types so this extension has been deprecated and will be removed +from a future version. +</p> +<p>G++ allows attributes to follow a parenthesized direct initializer, +e.g. ‘<samp> int f (0) __attribute__ ((something)); </samp>’ This extension +has been ignored since G++ 3.3 and is deprecated. +</p> +<p>G++ allows anonymous structs and unions to have members that are not +public non-static data members (i.e. fields). These extensions are +deprecated. +</p> +<hr> +<div class="header"> +<p> +Next: <a href="Backwards-Compatibility.html#Backwards-Compatibility" accesskey="n" rel="next">Backwards Compatibility</a>, Previous: <a href="C_002b_002b-Concepts.html#C_002b_002b-Concepts" accesskey="p" rel="previous">C++ Concepts</a>, Up: <a href="C_002b_002b-Extensions.html#C_002b_002b-Extensions" accesskey="u" rel="up">C++ Extensions</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> |