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errorcode — An error code
errorcode ::= (#PCDATA|replaceable|inlinegraphic|inlinemediaobject|indexterm|beginpage)*
| 
                         Name  | 
                     
                         Type  | 
                     
                         Default  | 
                  |||
| moreinfo | 
                        
  | 
                     "none" | 
An error code. Error codes are often numeric, but in some environments they may be symbolic constants.
DocBook provides four elements for identifying the parts of an error message:
               ErrorCode, for the alphanumeric error code (e.g., “-2”);
               ErrorName, for the symbolic name of the error
               (e.g., “ENOENT”);
               ErrorText, for the text of the error message (e.g., “file
                     not found”); and
               ErrorType, for the error type (e.g., “recoverable”).
               
            
                  Formatted inline. The MoreInfo attribute
                  can help generate a link or query to retrieve additional information.
                  
               
These elements contain errorcode:
                  action, application, attribution, bibliomisc, bridgehead, citation, citetitle, classsynopsisinfo, code, command, computeroutput, database, emphasis, entry, filename, firstterm, foreignphrase, funcparams, funcsynopsisinfo, function, glosssee, glossseealso, glossterm, hardware, interfacename, keycap, lineannotation, link, literal, literallayout, lotentry, member, msgaud, olink, option, optional, para, parameter, phrase, primary, primaryie, productname, programlisting, property, quote, refdescriptor, refentrytitle, refname, refpurpose, remark, screen, screeninfo, secondary, secondaryie, see, seealso, seealsoie, seeie, seg, segtitle, simpara, subtitle, synopsis, systemitem, td, term, termdef, tertiary, tertiaryie, th, title, titleabbrev, tocback, tocentry, tocfront, trademark, ulink, userinput.
               
The following elements occur in errorcode:
                  beginpage, indexterm, inlinegraphic, inlinemediaobject, replaceable.
               
<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>
On most DOS-derived systems, functions signal a <errortext>File
Not Found</errortext> error by returning
<errorcode>2</errorcode> (<errorname>ENOENT</errorname>).  This is usually a
<errortype>recoverable</errortype> (non-fatal) error.
</para>On most DOS-derived systems, functions signal a File Not Found error by returning 2 (ENOENT). This is usually a recoverable (non-fatal) error.
<!DOCTYPE para PUBLIC "-//OASIS//DTD DocBook XML V4.1.2//EN"
          "http://www.oasis-open.org/docbook/xml/4.1.2/docbookx.dtd">
<para>
On most UNIX systems, functions signal a <errorname>File
Not Found</errorname> error by returning
<errorcode>ENOENT</errorcode>, defined in 
<filename>errno.h</filename>.  This is usually a
<errortype>recoverable</errortype> (non-fatal) error.
</para>
               On most UNIX systems, functions signal a File
                  Not Found error by returning
               ENOENT, defined in 
               errno.h.  This is usually a
               recoverable (non-fatal) error.