223cc6685e
git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
53 lines
1.8 KiB
HTML
53 lines
1.8 KiB
HTML
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<TITLE>cc65 function reference: Alphabetical function reference: perror</TITLE>
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<A HREF="funcref-164.html">Next</A>
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<H2><A NAME="perror"></A> 3.118 <A HREF="funcref.html#toc3.118">perror</A></H2>
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<P>
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<BLOCKQUOTE>
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<DL>
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<DT><B>Function</B><DD><P>Print an error message for the error in <CODE>errno</CODE>.</P>
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<DT><B>Header</B><DD><P><CODE>
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<A HREF="funcref-37.html#stdio.h">stdio.h</A></CODE></P>
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<DT><B>Declaration</B><DD><P><CODE>void __fastcall__ perror (const char* s);</CODE></P>
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<DT><B>Description</B><DD><P><CODE>perror</CODE> prints an error message to <CODE>stderr</CODE>. If <CODE>s</CODE>
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is not <CODE>NULL</CODE> and not an empty string, it is printed followed by a colon and
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a blank. Then the error message for the current contents of <CODE>errno</CODE> is
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printed followed by a newline. The message output is the same as returned by
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<CODE>
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<A HREF="funcref-189.html#strerror">strerror</A></CODE> with an argument of <CODE>errno</CODE>.</P>
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<DT><B>Limits</B><DD><P>
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<UL>
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<LI>The function is only available as fastcall function, so it may only
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be used in presence of a prototype.</LI>
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</UL>
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</P>
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<DT><B>Availability</B><DD><P>ISO 9899</P>
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<DT><B>See also</B><DD><P>
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<A HREF="funcref-50.html#_poserror">_poserror</A>,
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<A HREF="funcref-189.html#strerror">strerror</A></P>
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<DT><B>Example</B><DD><P>None.</P>
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</DL>
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</P>
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