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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: signal</TITLE> <LINK HREF="funcref-139.html" REL=next> <LINK HREF="funcref-137.html" REL=previous> <LINK HREF="funcref.html#toc3" REL=contents></HEAD><BODY><A HREF="funcref-139.html">Next</A><A HREF="funcref-137.html">Previous</A><A HREF="funcref.html#toc3">Contents</A><HR><H2><A NAME="signal"></A> 3.97 <A HREF="funcref.html#toc3.97">signal</A></H2><P><BLOCKQUOTE><DL><DT><B>Function</B><DD><P>Install a signal handler.</P><DT><B>Header</B><DD><P><CODE><A HREF="funcref-29.html#signal.h">signal.h</A></CODE></P><DT><B>Declaration</B><DD><P><CODE>__sigfunc __fastcall__ signal (int sig, __sigfunc func);</CODE></P><DT><B>Description</B><DD><P><CODE>signal</CODE> installs a handler for the given signal. Thehandler may either be a user supplied function, or one of the predefinedsignal handlers <CODE>SIG_IGN</CODE> or <CODE>SIG_DFL</CODE>. The function returns theprevious value if the signal , or the special function vector SIG_ERR incase of an error.</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></UL></P><DT><B>Availability</B><DD><P>ISO 9899</P><DT><B>See also</B><DD><P><A HREF="funcref-57.html#abort">abort</A>,<A HREF="funcref-129.html#raise">raise</A></P><DT><B>Example</B><DD><P>None.</P></DL></BLOCKQUOTE></P><HR><A HREF="funcref-139.html">Next</A><A HREF="funcref-137.html">Previous</A><A HREF="funcref.html#toc3">Contents</A></BODY></HTML>⌨️ 快捷键说明
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