Willkommen bei WordPress. Dies ist dein erster Beitrag. Bearbeite oder lösche ihn und beginne mit dem Schreiben!
Hallo Welt!
von raredesign | Dez 3, 2019 | Allgemein | 0 Kommentare
Cokiee Shell
| Current Path : /usr/share/doc/libcomerr2/html-info/ |
| Current File : //usr/share/doc/libcomerr2/html-info/com_err_1.html |
<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN" "http://www.w3.org/TR/html401/loose.dtd">
<html>
<!-- Created on February 22, 2015 by texi2html 1.82
texi2html was written by:
Lionel Cons <Lionel.Cons@cern.ch> (original author)
Karl Berry <karl@freefriends.org>
Olaf Bachmann <obachman@mathematik.uni-kl.de>
and many others.
Maintained by: Many creative people.
Send bugs and suggestions to <texi2html-bug@nongnu.org>
-->
<head>
<title>A Common Error Description Library for UNIX: 2. Error codes</title>
<meta name="description" content="A Common Error Description Library for UNIX: 2. Error codes">
<meta name="keywords" content="A Common Error Description Library for UNIX: 2. Error codes">
<meta name="resource-type" content="document">
<meta name="distribution" content="global">
<meta name="Generator" content="texi2html 1.82">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<style type="text/css">
<!--
a.summary-letter {text-decoration: none}
blockquote.smallquotation {font-size: smaller}
pre.display {font-family: serif}
pre.format {font-family: serif}
pre.menu-comment {font-family: serif}
pre.menu-preformatted {font-family: serif}
pre.smalldisplay {font-family: serif; font-size: smaller}
pre.smallexample {font-size: smaller}
pre.smallformat {font-family: serif; font-size: smaller}
pre.smalllisp {font-size: smaller}
span.roman {font-family:serif; font-weight:normal;}
span.sansserif {font-family:sans-serif; font-weight:normal;}
ul.toc {list-style: none}
-->
</style>
</head>
<body lang="en" bgcolor="#FFFFFF" text="#000000" link="#0000FF" vlink="#800080" alink="#FF0000">
<a name="Error-codes"></a>
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="com_err_0.html#Why-com_005ferr_003f" title="Previous section in reading order"> < </a>]</td>
<td valign="middle" align="left">[<a href="com_err_2.html#Error-table-source-file" title="Next section in reading order"> > </a>]</td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left">[<a href="com_err_0.html#Why-com_005ferr_003f" title="Beginning of this chapter or previous chapter"> << </a>]</td>
<td valign="middle" align="left">[<a href="com_err_0.html#Why-com_005ferr_003f" title="Up section"> Up </a>]</td>
<td valign="middle" align="left">[<a href="com_err_2.html#Error-table-source-file" title="Next chapter"> >> </a>]</td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left">[<a href="com_err_0.html#Why-com_005ferr_003f" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="com_err_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[Index]</td>
<td valign="middle" align="left">[<a href="com_err_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<a name="Error-codes-1"></a>
<h2 class="section">2. Error codes</h2>
<p>Error codes themselves are 32 bit (signed) integers, of which the high
order 24 bits are an identifier of which error table the error code is
from, and the low order 8 bits are a sequential error number within
the table. An error code may thus be easily decomposed into its component
parts. Only the lowest 32 bits of an error code are considered significant
on systems which support wider values.
</p>
<p>Error table 0 is defined to match the UNIX system call error table
(<code>sys_errlist</code>); this allows <code>errno</code> values to be used directly
in the library (assuming that <code>errno</code> is of a type with the same width
as <tt>long</tt>). Other error table numbers are formed by compacting together
the first four characters of the error table name. The mapping between
characters in the name and numeric values in the error code are defined in
a system-independent fashion, so that two systems that can pass integral
values between them can reliably pass error codes without loss of meaning;
this should work even if the character sets used are not the same.
(However, if this is to be done, error table 0 should be avoided, since the
local system call error tables may differ.)
</p>
<p>Any variable which is to contain an error code should be declared <tt>long</tt>.
The draft proposed American National Standard for C (as of May, 1988)
requires that <tt>long</tt> variables be at least 32 bits; any system which does
not support 32-bit <tt>long</tt> values cannot make use of this package (nor
much other software that assumes an ANSI-C environment base) without
significant effort.
</p>
<hr size="6">
<table cellpadding="1" cellspacing="1" border="0">
<tr><td valign="middle" align="left">[<a href="com_err_0.html#Why-com_005ferr_003f" title="Beginning of this chapter or previous chapter"> << </a>]</td>
<td valign="middle" align="left">[<a href="com_err_2.html#Error-table-source-file" title="Next chapter"> >> </a>]</td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left"> </td>
<td valign="middle" align="left">[<a href="com_err_0.html#Why-com_005ferr_003f" title="Cover (top) of document">Top</a>]</td>
<td valign="middle" align="left">[<a href="com_err_toc.html#SEC_Contents" title="Table of contents">Contents</a>]</td>
<td valign="middle" align="left">[Index]</td>
<td valign="middle" align="left">[<a href="com_err_abt.html#SEC_About" title="About (help)"> ? </a>]</td>
</tr></table>
<p>
<font size="-1">
This document was generated by <em>Build Daemon</em> on <em>February 22, 2015</em> using <a href="http://www.nongnu.org/texi2html/"><em>texi2html 1.82</em></a>.
</font>
<br>
</p>
</body>
</html>
Cokiee Shell Web 1.0, Coded By Razor
Neueste Kommentare