Re: How to calculate logic shift of large numbers?

[Pascal Bourguignon]

Zhang Wei <id.brep@gmail.com> writes:

> The following statement seems don't work due to the 29bit limit of
> emacs integers:
>
> (lsh #x112233445566778899aabbcccdd 4)

(defun cl-eval (text)
  (unless (inferior-lisp-proc)
     (inferior-lisp  "/usr/bin/clisp -ansi -I"))
  (comint-send-string (inferior-lisp-proc) (format "%s\n" text)))

(cl-eval " (ash #x112233445566778899aabbcccdd 4) ")

There is no large number in emacs lisp.
You could shift several small numbers, forwarding bits shifted out.



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__Pascal Bourguignon__                     http://www.informatimago.com/

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