Array disorder in ruby 1.8.6

Ruby
1

Hello,

I suppose I found a bug in ruby (or behavior that I am unable to
explain). My version is, exactly, ruby 1.8.6 (2007-03-13 patchlevel 0)
[universal-darwin8.0]

problem is in this method:

def plotresults(results,runset)
…
runset.each{|k| f.printf("%-*s",ns,k)}
…
end

.each iterator just prints the items of the runset array out of order.
however, if I just evaluate the array anywhere in the method, everything
is ok:

def plotresults(results,runset)
runset
…
runset.each{|k| f.printf("%-*s",ns,k)}
…
end

Not much more to say about that. Can anybody explain to me why Ruby
should behave like that?

2

On Fri, Apr 4, 2008 at 1:57 PM, Frantisek H. [email protected]
wrote:

runset.each{|k| f.printf(“%-*s”,ns,k)}
runset.each{|k| f.printf(“%-*s”,ns,k)}
…
end

Not much more to say about that. Can anybody explain to me why Ruby
should behave like that?

One question: is runset really an Array or a Set? Set doesn’t keep the
order.

Jano

3

Hi –

On Fri, 4 Apr 2008, Frantisek H. wrote:

runset.each{|k| f.printf("%-*s",ns,k)}
runset.each{|k| f.printf("%-*s",ns,k)}
…
end

Not much more to say about that. Can anybody explain to me why Ruby
should behave like that?

It’s impossible to comment without seeing the code where runset is
created.

David

4

2008/4/4, Frantisek H. [email protected]:

end

.each iterator just prints the items of the runset array out of order.

What exactly do you mean by “out of order”? What order? What type is
runset?

however, if I just evaluate the array anywhere in the method, everything
is ok:

What do you mean be “evaluate”?

def plotresults(results,runset)
runset
…
runset.each{|k| f.printf(“%-*s”,ns,k)}
…
end

Not much more to say about that. Can anybody explain to me why Ruby
should behave like that?

You need to say more about that - otherwise we can’t say much more about
it.

Cheers

robert