[squeak-dev] A candidate for the "weirdest bug ever" award

Benoit St-Jean bstjean at yahoo.com
Wed Feb 24 00:39:53 UTC 2016

If that's of any hint/help, I get the exact same thing on latest Pharo/Spur on Windows. ----------------- 
Benoît St-Jean 
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      From: Stéphane Rollandin <lecteur at zogotounga.net>
 To: liste <liste@> 
 Sent: Tuesday, February 23, 2016 5:21 PM
 Subject: [squeak-dev] A candidate for the "weirdest bug ever" award
I have a nice one:

In (seemingly) any 5.0 image, with the latest Spur, type the following 
in a workspace and printIt a couple of time:

(1 to: 3) collect: [:i |
    m := ''.
    2 timesRepeat: [m := m,  ('1234' perform: #copyFrom:to: with: 2 with: 4)].

I get kind of randomly either #('234' '' '') or the correct #('234234' 
'234234' '234234'), or at times #('234234' '' '').

Attached is the same code, this time in a method. It is even funkier, 
since a common answer is then 'copyFrom:to:234', although I sometimes 
get '234234' ...


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