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<TITLE>cc65 function reference: Alphabetical function reference: ultoa</TITLE>
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<H2><A NAME="ultoa"></A> 3.163 <A HREF="funcref.html#toc3.163">ultoa</A></H2>
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<DT><B>Function</B><DD><P>Convert an unsigned long integer into a string.</P>
<DT><B>Header</B><DD><P><CODE>
<A HREF="funcref-38.html#stdlib.h">stdlib.h</A></CODE></P>
<DT><B>Declaration</B><DD><P><CODE>char* __fastcall__ ultoa (unsigned long val, char* buf, int radix);</CODE></P>
<DT><B>Description</B><DD><P><CODE>itoa</CODE> converts the unsigned long integer <CODE>val</CODE> into a
string using <CODE>radix</CODE> as the base.</P>
<DT><B>Limits</B><DD><P>
<UL>
<LI>There are no provisions to prevent a buffer overflow.</LI>
<LI>The function is non standard, so it is not available in strict ANSI mode.
You should probably use <CODE>sprintf</CODE> instead.</LI>
<LI>The function is only available as fastcall function, so it may only be
used in presence of a prototype.</LI>
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<DT><B>Availability</B><DD><P>cc65</P>
<DT><B>See also</B><DD><P>
<A HREF="funcref-66.html#atoi">atoi</A>,
<A HREF="funcref-67.html#atol">atol</A>,
<A HREF="funcref-127.html#itoa">itoa</A>,
<A HREF="funcref-136.html#ltoa">ltoa</A>,
<A HREF="funcref-210.html#utoa">utoa</A></P>
<DT><B>Example</B><DD><P>None.</P>
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