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52 lines
1.7 KiB
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52 lines
1.7 KiB
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<HTML>
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<TITLE>cc65 function reference: Alphabetical function reference: strerror</TITLE>
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<A HREF="funcref-190.html">Next</A>
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<H2><A NAME="strerror"></A> 3.144 <A HREF="funcref.html#toc3.144">strerror</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>Return a string describing an error code.</P>
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<DT><B>Header</B><DD><P><CODE>
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<A HREF="funcref-39.html#string.h">string.h</A></CODE></P>
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<DT><B>Declaration</B><DD><P><CODE>char* __fastcall__ strerror (int errcode);</CODE></P>
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<DT><B>Description</B><DD><P>The <CODE>strerror</CODE> function returns a string describing the
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given error code. If an invalid error code is passed, the string "Unknown
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error" is returned, and <CODE>errno</CODE> is set to <CODE>EINVAL</CODE>. In all other cases,
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<CODE>errno</CODE> is left untouched.</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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<LI>While the return type of the function is a <CODE>char*</CODE>, the returned
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string must not be modified by the caller!</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-52.html#_stroserror">_stroserror</A></P>
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<DT><B>Example</B><DD><P>None.</P>
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</DL>
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</BLOCKQUOTE>
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