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diff --git a/share/doc/gcc/Standard-Libraries.html b/share/doc/gcc/Standard-Libraries.html new file mode 100644 index 0000000..9a3f36e --- /dev/null +++ b/share/doc/gcc/Standard-Libraries.html @@ -0,0 +1,109 @@ +<!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): Standard Libraries</title> + +<meta name="description" content="Using the GNU Compiler Collection (GCC): Standard Libraries"> +<meta name="keywords" content="Using the GNU Compiler Collection (GCC): Standard Libraries"> +<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="Trouble.html#Trouble" rel="up" title="Trouble"> +<link href="Disappointments.html#Disappointments" rel="next" title="Disappointments"> +<link href="Fixed-Headers.html#Fixed-Headers" rel="previous" title="Fixed Headers"> +<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="Standard-Libraries"></a> +<div class="header"> +<p> +Next: <a href="Disappointments.html#Disappointments" accesskey="n" rel="next">Disappointments</a>, Previous: <a href="Fixed-Headers.html#Fixed-Headers" accesskey="p" rel="previous">Fixed Headers</a>, Up: <a href="Trouble.html#Trouble" accesskey="u" rel="up">Trouble</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="Standard-Libraries-1"></a> +<h3 class="section">14.5 Standard Libraries</h3> + +<a name="index-Wall-1"></a> +<p>GCC by itself attempts to be a conforming freestanding implementation. +See <a href="Standards.html#Standards">Language Standards Supported by GCC</a>, for details of +what this means. Beyond the library facilities required of such an +implementation, the rest of the C library is supplied by the vendor of +the operating system. If that C library doesn’t conform to the C +standards, then your programs might get warnings (especially when using +<samp>-Wall</samp>) that you don’t expect. +</p> +<p>For example, the <code>sprintf</code> function on SunOS 4.1.3 returns +<code>char *</code> while the C standard says that <code>sprintf</code> returns an +<code>int</code>. The <code>fixincludes</code> program could make the prototype for +this function match the Standard, but that would be wrong, since the +function will still return <code>char *</code>. +</p> +<p>If you need a Standard compliant library, then you need to find one, as +GCC does not provide one. The GNU C library (called <code>glibc</code>) +provides ISO C, POSIX, BSD, SystemV and X/Open compatibility for +GNU/Linux and HURD-based GNU systems; no recent version of it supports +other systems, though some very old versions did. Version 2.2 of the +GNU C library includes nearly complete C99 support. You could also ask +your operating system vendor if newer libraries are available. +</p> + + + +</body> +</html> |