From: Tom Clarke <tarclarke@...>
Date: 2012-02-09T01:56:06+09:00
Subject: Require bug confirmation: possible 'times' method error

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Hi all,

First time posting here. I'm a Ruby newbie, so apologies if this question
sounds dumb.

I've found something I'm unable to explain. It's either a 'bug' or a
confusing feature. See code below (taken from rubylearning.com):
---
"# p019mtdarry.rb

# if you give return multiple parameters,
# the method returns them in an array
# The times method of the Integer class iterates block num times,
# passing in values from zero to num-1

def mtdarry
  10.times do |num|
  square = num * num
  return num, square if num > 5
  end
end


# using parallel assignment to collect the return value
num, square = mtdarry

puts num
puts square"
---
The output is meant to be as follows:
---
">ruby p019mtdarry.rb
6
36
>Exit code: 0"
---
This is the output for the code above. However, if I change 10.times to
6.times, the 'puts num' output is 6, and the square output is blank.

The reason this is odd is, if the values for num go from 0 to 5, then the
output of puts num should be 5. However, as the output of puts num is 6,
then the puts square output should be 36, but instead it is blank.

I've tested this on both Ruby 1.9.2 and 1.9.3 (p0). My question is, should
I raise this as a bug or have I missed something in my program analysis?

Thanks,
Tom

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