I don't know if this is more efficient in general, but (intern (format 
nil "~A~A~A" 'a 'b 'c)) is another way to achieve the same end and it 
is slightly faster and conses about half as much in MCL.

On Monday, September 29, 2003, at 07:41 PM, Fabrizio Morbini wrote:

> Hi all, if I have three symbols: A, B and C and I want build the symbol
> ABC the only things that I can do is:
>
> (read-from-string (concatenate 'string (symbol-name 'a) (symbol-name 
> 'b)
> (symbol-name 'c)))
>
> Is there something more efficient?
>
> Thank you very much and Best Regards.
>
> Fabrizio.
>
>
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