diff options
| author | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
|---|---|---|
| committer | alk3pInjection <webmaster@raspii.tech> | 2024-02-04 16:16:35 +0800 |
| commit | abdaadbcae30fe0c9a66c7516798279fdfd97750 (patch) | |
| tree | 00a54a6e25601e43876d03c1a4a12a749d4a914c /share/doc/cpp/C_002b_002b-Named-Operators.html | |
https://developer.arm.com/downloads/-/arm-gnu-toolchain-downloads
Change-Id: I7303388733328cd98ab9aa3c30236db67f2e9e9c
Diffstat (limited to 'share/doc/cpp/C_002b_002b-Named-Operators.html')
| -rw-r--r-- | share/doc/cpp/C_002b_002b-Named-Operators.html | 113 |
1 files changed, 113 insertions, 0 deletions
diff --git a/share/doc/cpp/C_002b_002b-Named-Operators.html b/share/doc/cpp/C_002b_002b-Named-Operators.html new file mode 100644 index 0000000..24fcb70 --- /dev/null +++ b/share/doc/cpp/C_002b_002b-Named-Operators.html @@ -0,0 +1,113 @@ +<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html4/loose.dtd"> +<html> +<!-- Copyright (C) 1987-2023 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. A copy of +the license is included in the +section entitled "GNU Free Documentation License". + +This manual contains no Invariant Sections. The Front-Cover Texts are +(a) (see below), and the Back-Cover Texts are (b) (see below). + +(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>The C Preprocessor: C++ Named Operators</title> + +<meta name="description" content="The C Preprocessor: C++ Named Operators"> +<meta name="keywords" content="The C Preprocessor: C++ Named Operators"> +<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="Index-of-Directives.html#Index-of-Directives" rel="index" title="Index of Directives"> +<link href="index.html#SEC_Contents" rel="contents" title="Table of Contents"> +<link href="Predefined-Macros.html#Predefined-Macros" rel="up" title="Predefined Macros"> +<link href="Undefining-and-Redefining-Macros.html#Undefining-and-Redefining-Macros" rel="next" title="Undefining and Redefining Macros"> +<link href="System_002dspecific-Predefined-Macros.html#System_002dspecific-Predefined-Macros" rel="previous" title="System-specific Predefined Macros"> +<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" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000"> +<a name="C_002b_002b-Named-Operators"></a> +<div class="header"> +<p> +Previous: <a href="System_002dspecific-Predefined-Macros.html#System_002dspecific-Predefined-Macros" accesskey="p" rel="previous">System-specific Predefined Macros</a>, Up: <a href="Predefined-Macros.html#Predefined-Macros" accesskey="u" rel="up">Predefined Macros</a> [<a href="index.html#SEC_Contents" title="Table of contents" rel="contents">Contents</a>][<a href="Index-of-Directives.html#Index-of-Directives" title="Index" rel="index">Index</a>]</p> +</div> +<hr> +<a name="C_002b_002b-Named-Operators-1"></a> +<h4 class="subsection">3.7.4 C++ Named Operators</h4> +<a name="index-named-operators"></a> +<a name="index-C_002b_002b-named-operators"></a> +<a name="index-iso646_002eh"></a> + +<p>In C++, there are eleven keywords which are simply alternate spellings +of operators normally written with punctuation. These keywords are +treated as such even in the preprocessor. They function as operators in +‘<samp>#if</samp>’, and they cannot be defined as macros or poisoned. In C, you +can request that those keywords take their C++ meaning by including +<samp>iso646.h</samp>. That header defines each one as a normal object-like +macro expanding to the appropriate punctuator. +</p> +<p>These are the named operators and their corresponding punctuators: +</p> +<table> +<tr><td>Named Operator</td><td>Punctuator</td></tr> +<tr><td><code>and</code></td><td><code>&&</code></td></tr> +<tr><td><code>and_eq</code></td><td><code>&=</code></td></tr> +<tr><td><code>bitand</code></td><td><code>&</code></td></tr> +<tr><td><code>bitor</code></td><td><code>|</code></td></tr> +<tr><td><code>compl</code></td><td><code>~</code></td></tr> +<tr><td><code>not</code></td><td><code>!</code></td></tr> +<tr><td><code>not_eq</code></td><td><code>!=</code></td></tr> +<tr><td><code>or</code></td><td><code>||</code></td></tr> +<tr><td><code>or_eq</code></td><td><code>|=</code></td></tr> +<tr><td><code>xor</code></td><td><code>^</code></td></tr> +<tr><td><code>xor_eq</code></td><td><code>^=</code></td></tr> +</table> + + + + +</body> +</html> |