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Re: problems of everyday life
From: |
Akib Azmain Turja |
Subject: |
Re: problems of everyday life |
Date: |
Wed, 16 Nov 2022 18:10:54 +0600 |
Juri Linkov <juri@linkov.net> writes:
>> or maybe
>>
>> (apply #'+ '(5 7 10))
>>
>> or ... well, what do you prefer?
>
> This reminds the implementation of sleep sort:
>
> (dolist (i '(3 1 4 1 5 92 65 3 5 89 79 3))
> (run-with-timer (* i 0.001) nil 'message "%d" i))
>
> The sorted output printed in the *Messages* buffer:
>
> 1 [2 times]
> 3 [3 times]
> 4
> 5 [2 times]
> 65
> 79
> 89
> 92
>
Someone implemented addition using sleep. Now I have implemented
subtraction:
--8<---------------cut here---------------start------------->8---
(defun subtract (x y)
(when (< y x)
(let ((tmp x))
(setq x y)
(setq y tmp)))
(let ((time-a (current-time)))
(sleep-for x)
(let ((time-b (current-time)))
(while (< (float-time (time-subtract nil time-a)) y)
(sleep-for 0.9))
(floor (float-time (time-subtract nil time-b))))))
(subtract 0 1) ; => 1
(subtract 3 5) ; => 2
--8<---------------cut here---------------end--------------->8---
--
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- problems of everyday life, Emanuel Berg, 2022/11/15
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- Re: problems of everyday life, Dmitry Gutov, 2022/11/15
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- Re: problems of everyday life, Juri Linkov, 2022/11/16
- Re: problems of everyday life, Emanuel Berg, 2022/11/18
- Re: problems of everyday life, Rudolf Adamkovič, 2022/11/16
- Re: problems of everyday life, Emanuel Berg, 2022/11/16
- Re: problems of everyday life, Emanuel Berg, 2022/11/16