From: JB <temuphaey0@...>
Date: 2003-12-16T01:21:57+09:00
Subject: threads and parameters bug (?)

I wrote this program

threads = []
for i in 1..3
  threads << Thread.new(i) { |i|
     sleep(i)
     print i
  }
end
threads.each { |aThread|  aThread.join }

I expected to see: 123
but I got : 333

Is it a bug? or is it normal?
To my mind it might be a bug because the code doesn't do what it seems to
do.(?)

Upon to me the 'i' variable of the 'print i'  should be '|i|' (which is the
last declaration of 'i') and not the 'i' in 'for i in 1..3' (which value is
'3' and the end of the loop).

Can anybody explain me?
Thanks


Ps:
Of course if I write
for i in 1..3
  threads << Thread.new(i) { |a|
     sleep(1)
     print a
  }
it works.