File r37/lisp/csl/html/r37_0208.html artifact 0145140261 part of check-in 52fc28dabe

<A NAME=ODD>

<TITLE>ODD</TITLE></A>
<b><a href=r37_idx.html>INDEX</a></b><p><p>



<B>ODD</B> _ _ _  _ _ _  _ _ _  _ _ _ <B>declaration</B><P>
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syntax: </H3>
<em>odd</em>&lt;identifier&gt;{,&lt;identifier&gt;}* 
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This declaration is used to declare an operator odd in its first 
argument. Expressions involving an operator declared in this manner are 
transformed if the first argument contains a minus sign. Any other 
arguments are not affected. 
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examples: </H3>
<P><PRE><TT>
        odd f; 

        f(-a) 

  -F(A) 


        f(-a,-b) 

  -F(A,-B) 


        f(a,-b) 

  F(A,-B)

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If say <em>f</em> is declared odd, then <em>f(0)</em> is replaced by zero 
unless <em>f</em> is also declared non zero by the declaration 

<A HREF=r37_0207.html>nonzero</A>. 
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