Hello,

A while back there was this discussion about what code could crash irb

I did the following in irb 1.9;
a = [3, 2, 1, 0, -1, -2, -3]
a.each {|x| a[x] = x +1}

irb just got stuck, it wouldn't do anything for a while until I hit
Ctrl+c, doing so threw up the following messages;
IRB::Abort: abort then interrupt!!
	from /usr/lib/ruby/1.9.0/irb.rb:81:in `irb_abort'
	from /usr/lib/ruby/1.9.0/irb.rb:243:in `signal_handle'
	from /usr/lib/ruby/1.9.0/irb.rb:66:in `block in start'
	from (irb):2:in `block (4 levels) in irb_binding'
	from (irb):2:in `each'
	from (irb):2
	from /usr/lib/ruby/1.9.0/irb.rb:150:in `block (2 levels) in eval_input'
	from /usr/lib/ruby/1.9.0/irb.rb:259:in `signal_status'
	from /usr/lib/ruby/1.9.0/irb.rb:147:in `block in eval_input'
	from /usr/lib/ruby/1.9.0/irb.rb:146:in `eval_input'
	from /usr/lib/ruby/1.9.0/irb.rb:70:in `block in start'
	from /usr/lib/ruby/1.9.0/irb.rb:69:in `catch'
	from /usr/lib/ruby/1.9.0/irb.rb:69:in `start'
	from /usr/bin/irb1.9:13:in `<main>'

After that it wouldn't accept any more commands till I exit the
session by executing "exit".

I'm kind-a obtuse at the moment, could someone please tell me what was
it that I did wrong.
I wanted to increment the values of each element of the array.

~Mayuresh