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diff --git a/share/doc/gcc/Preprocessing-directives-implementation.html b/share/doc/gcc/Preprocessing-directives-implementation.html new file mode 100644 index 0000000..c2bbfbc --- /dev/null +++ b/share/doc/gcc/Preprocessing-directives-implementation.html @@ -0,0 +1,141 @@ +<!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): Preprocessing directives implementation</title> + +<meta name="description" content="Using the GNU Compiler Collection (GCC): Preprocessing directives implementation"> +<meta name="keywords" content="Using the GNU Compiler Collection (GCC): Preprocessing directives implementation"> +<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-Implementation.html#C-Implementation" rel="up" title="C Implementation"> +<link href="Library-functions-implementation.html#Library-functions-implementation" rel="next" title="Library functions implementation"> +<link href="Statements-implementation.html#Statements-implementation" rel="previous" title="Statements implementation"> +<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="Preprocessing-directives-implementation"></a> +<div class="header"> +<p> +Next: <a href="Library-functions-implementation.html#Library-functions-implementation" accesskey="n" rel="next">Library functions implementation</a>, Previous: <a href="Statements-implementation.html#Statements-implementation" accesskey="p" rel="previous">Statements implementation</a>, Up: <a href="C-Implementation.html#C-Implementation" accesskey="u" rel="up">C Implementation</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="Preprocessing-Directives"></a> +<h3 class="section">4.13 Preprocessing Directives</h3> + +<p>See <a href="http://gcc.gnu.org/onlinedocs/cpp/Implementation_002ddefined-behavior.html#Implementation_002ddefined-behavior">Implementation-defined +behavior</a> in <cite>The C Preprocessor</cite>, for details of these aspects of +implementation-defined behavior. +</p> +<ul> +<li> <cite>The locations within <code>#pragma</code> directives where header name +preprocessing tokens are recognized (C11 6.4, C11 6.4.7).</cite> + +</li><li> <cite>How sequences in both forms of header names are mapped to headers +or external source file names (C90 6.1.7, C99 and C11 6.4.7).</cite> + +</li><li> <cite>Whether the value of a character constant in a constant expression +that controls conditional inclusion matches the value of the same character +constant in the execution character set (C90 6.8.1, C99 and C11 6.10.1).</cite> + +</li><li> <cite>Whether the value of a single-character character constant in a +constant expression that controls conditional inclusion may have a +negative value (C90 6.8.1, C99 and C11 6.10.1).</cite> + +</li><li> <cite>The places that are searched for an included ‘<samp><></samp>’ delimited +header, and how the places are specified or the header is +identified (C90 6.8.2, C99 and C11 6.10.2).</cite> + +</li><li> <cite>How the named source file is searched for in an included ‘<samp>""</samp>’ +delimited header (C90 6.8.2, C99 and C11 6.10.2).</cite> + +</li><li> <cite>The method by which preprocessing tokens (possibly resulting from +macro expansion) in a <code>#include</code> directive are combined into a header +name (C90 6.8.2, C99 and C11 6.10.2).</cite> + +</li><li> <cite>The nesting limit for <code>#include</code> processing (C90 6.8.2, C99 +and C11 6.10.2).</cite> + +</li><li> <cite>Whether the ‘<samp>#</samp>’ operator inserts a ‘<samp>\</samp>’ character before +the ‘<samp>\</samp>’ character that begins a universal character name in a +character constant or string literal (C99 and C11 6.10.3.2).</cite> + +</li><li> <cite>The behavior on each recognized non-<code>STDC #pragma</code> +directive (C90 6.8.6, C99 and C11 6.10.6).</cite> + +<p>See <a href="http://gcc.gnu.org/onlinedocs/cpp/Pragmas.html#Pragmas">Pragmas</a> in <cite>The C Preprocessor</cite>, for details of +pragmas accepted by GCC on all targets. See <a href="Pragmas.html#Pragmas">Pragmas +Accepted by GCC</a>, for details of target-specific pragmas. +</p> +</li><li> <cite>The definitions for <code>__DATE__</code> and <code>__TIME__</code> when +respectively, the date and time of translation are not available (C90 +6.8.8, C99 6.10.8, C11 6.10.8.1).</cite> + +</li></ul> + +<hr> +<div class="header"> +<p> +Next: <a href="Library-functions-implementation.html#Library-functions-implementation" accesskey="n" rel="next">Library functions implementation</a>, Previous: <a href="Statements-implementation.html#Statements-implementation" accesskey="p" rel="previous">Statements implementation</a>, Up: <a href="C-Implementation.html#C-Implementation" accesskey="u" rel="up">C Implementation</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> |