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elisp rng

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* module/language/elisp/boot.el (random): New function.
This commit is contained in:
BT Templeton 2012-03-07 20:09:21 -05:00
parent 43ff6804d6
commit 52d2472441
1 changed files with 15 additions and 0 deletions
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15
module/language/elisp/boot.el
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@ -596,3 +596,18 @@
(defun prin1-to-string (object)
(format* nil "~S" object))
;; Random number generation
(defvar %random-state (funcall (@ (guile) copy-random-state)
(@ (guile) *random-state*)))
(defun random (&optional limit)
(if (eq limit t)
(setq %random-state
(funcall (@ (guile) random-state-from-platform))))
(funcall (@ (guile) random)
(if (wholenump limit)
limit
(@ (guile) most-positive-fixnum))
%random-state))