223cc6685e
git-svn-id: svn://svn.compuextreme.de/Viitor/V963/Viitor_cc65@5933 504e572c-2e33-0410-9681-be2bf7408885
65 lines
2.3 KiB
HTML
65 lines
2.3 KiB
HTML
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<TITLE>cc65 function reference: Alphabetical function reference: isascii</TITLE>
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<H2><A NAME="isascii"></A> 3.71 <A HREF="funcref.html#toc3.71">isascii</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>Check if a given character is in the ASCII (0..127) range.</P>
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<DT><B>Header</B><DD><P><CODE>
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<A HREF="funcref-15.html#ctype.h">ctype.h</A></CODE></P>
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<DT><B>Declaration</B><DD><P><CODE>int __fastcall__ isascii (int c);</CODE></P>
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<DT><B>Description</B><DD><P>The function returns a value of zero if the given argument
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is in the range 0..127 (the range of valid ASCII characters) and a non zero
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value if not.</P>
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<DT><B>Limits</B><DD><P>
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<UL>
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<LI>When compiling with <CODE>-Os</CODE> the function is actually a macro. The
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inline sequence generated by the macro will not work correctly for values
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outside the range 0..255. <B>Note:</B> The constant <CODE>EOF</CODE> is not part of
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this range. The non inline function may be accessed by <CODE>#undef</CODE>'ing the
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macro.</LI>
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<LI>When compiling without <CODE>-Os</CODE>, the function is only available as
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fastcall function, so it may only 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-114.html#isalnum">isalnum</A>,
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<A HREF="funcref-115.html#isalpha">isalpha</A>,
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<A HREF="funcref-117.html#isblank">isblank</A>,
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<A HREF="funcref-118.html#iscntrl">iscntrl</A>,
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<A HREF="funcref-119.html#isdigit">isdigit</A>,
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<A HREF="funcref-120.html#isgraph">isgraph</A>,
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<A HREF="funcref-121.html#islower">islower</A>,
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<A HREF="funcref-122.html#isprint">isprint</A>,
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<A HREF="funcref-123.html#ispunct">ispunct</A>,
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<A HREF="funcref-124.html#isspace">isspace</A>,
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<A HREF="funcref-125.html#isupper">isupper</A>,
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<A HREF="funcref-126.html#isxdigit">isxdigit</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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</P>
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