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  Operator:  #@
 
  Syntax:    #@parameter
 
  Summary:   The charizing operator, used only with the arguments of
             macros. If a #@ precedes a formal parameter in the
             definition of the macro, the actual argument is enclosed
             in single quotes and treated as a character when the macro
             is expanded. For example,
 
                  #define makechar(x)  #@x
 
             causes the statement
 
                  a = makechar(b);
 
             to be expanded into
 
                  a = 'b';
 
             The single-quote character cannot be used with the
             charizing operator.
                                    -♦-