funcref-166.html

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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: unlink</TITLE> <LINK HREF="funcref-167.html" REL=next> <LINK HREF="funcref-165.html" REL=previous> <LINK HREF="funcref.html#toc3" REL=contents></HEAD><BODY><A HREF="funcref-167.html">Next</A><A HREF="funcref-165.html">Previous</A><A HREF="funcref.html#toc3">Contents</A><HR><H2><A NAME="unlink"></A> 3.125 <A HREF="funcref.html#toc3.125">unlink</A></H2><P><BLOCKQUOTE><DL><DT><B>Function</B><DD><P>Delete a file.</P><DT><B>Header</B><DD><P><CODE><A HREF="funcref-38.html#unistd.h">unistd.h</A></CODE></P><DT><B>Declaration</B><DD><P><CODE>int __fastcall__ unlink (const char* name);</CODE></P><DT><B>Description</B><DD><P><CODE>unlink</CODE> deletes the file with the given name. On success,zero is returned. On error, -1 is returned and <CODE>errno</CODE> is set to an errorcode describing the reason for the failure.</P><DT><B>Limits</B><DD><P><UL><LI>The use of this function is discouraged. Please use <CODE><A HREF="funcref-132.html#remove">remove</A></CODE> instead, which is a native ANSI C function and does the same.</LI><LI>This function is not available on all cc65 targets (depends on theavailability of file I/O).</LI><LI>The function is only available as fastcall function, so it may onlybe used in presence of a prototype.</LI></UL></P><DT><B>Availability</B><DD><P>POSIX</P><DT><B>See also</B><DD><P><A HREF="funcref-132.html#remove">remove</A></P><DT><B>Example</B><DD>#<P>include &lt;stdio.h&gt;#include &lt;unistd.h&gt;</P><P>#define FILENAME "helloworld"</P><P>if (unlink (FILENAME) == 0) {printf ("We deleted %s successfully\n", FILENAME);} else {printf ("There was a problem deleting %s\n", FILENAME);}</P></DL></BLOCKQUOTE></P><HR><A HREF="funcref-167.html">Next</A><A HREF="funcref-165.html">Previous</A><A HREF="funcref.html#toc3">Contents</A></BODY></HTML>

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