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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN"><HTML><HEAD> <META NAME="GENERATOR" CONTENT="LinuxDoc-Tools 0.9.20"> <TITLE>cc65 function reference: Alphabetical function reference: strerror</TITLE> <LINK HREF="funcref-151.html" REL=next> <LINK HREF="funcref-149.html" REL=previous> <LINK HREF="funcref.html#toc3" REL=contents></HEAD><BODY><A HREF="funcref-151.html">Next</A><A HREF="funcref-149.html">Previous</A><A HREF="funcref.html#toc3">Contents</A><HR><H2><A NAME="strerror"></A> 3.109 <A HREF="funcref.html#toc3.109">strerror</A></H2><P><BLOCKQUOTE><DL><DT><B>Function</B><DD><P>Return a string describing an error code.</P><DT><B>Header</B><DD><P><CODE><A HREF="funcref-35.html#string.h">string.h</A></CODE></P><DT><B>Declaration</B><DD><P><CODE>char* __fastcall__ strerror (int errcode);</CODE></P><DT><B>Description</B><DD><P>The <CODE>strerror</CODE> function returns a string describing thegiven error code. If an invalid error code is passed, the string "Unknownerror" is returned, and <CODE>errno</CODE> is set to <CODE>EINVAL</CODE>. In all other cases,<CODE>errno</CODE> is left untouched.</P><DT><B>Limits</B><DD><P><UL><LI>The function is only available as fastcall function, so it may onlybe used in presence of a prototype.</LI><LI>While the return type of the function is a <CODE>char*</CODE>, the returnedstring must not be modified by the caller!</LI></UL></P><DT><B>Availability</B><DD><P>ISO 9899</P><DT><B>See also</B><DD><P><A HREF="funcref-47.html#_stroserror">_stroserror</A></P><DT><B>Example</B><DD><P>None.</P></DL></BLOCKQUOTE></P><HR><A HREF="funcref-151.html">Next</A><A HREF="funcref-149.html">Previous</A><A HREF="funcref.html#toc3">Contents</A></BODY></HTML>⌨️ 快捷键说明
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