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comp.lang.ruby

continuation

Daniel Schüle

2/5/2006 2:50:00 AM

Hello,

irb(main):005:0* cnt=0
=> 0
irb(main):006:0> cc=nil
=> nil
irb(main):007:0> callcc {|cc|}
=> nil
irb(main):008:0> cnt+=1
=> 1
irb(main):009:0> cc.call if cnt < 10
=> nil
irb(main):010:0> cnt
=> 1
irb(main):011:0>
irb(main):012:0* RUBY_VERSION
=> "1.8.4"
irb(main):013:0>

this example is from
http://www.rubygarden.org/ruby?Con...
and cnt should become 10

I also tried some other examples from the net
and it worked only in this case

irb(main):014:0* callcc do |cc|
irb(main):015:1* for i in 0..10
irb(main):016:2> print "\n#{i}: "
irb(main):017:2> for j in 0..10
irb(main):018:3> cc.call if j == 5 and i == 5
irb(main):019:3> printf "%3i", j
irb(main):020:3> end
irb(main):021:2> end
irb(main):022:1> end

0: 0 1 2 3 4 5 6 7 8 9 10
1: 0 1 2 3 4 5 6 7 8 9 10
2: 0 1 2 3 4 5 6 7 8 9 10
3: 0 1 2 3 4 5 6 7 8 9 10
4: 0 1 2 3 4 5 6 7 8 9 10
5: 0 1 2 3 4=> nil
irb(main):023:0>

Maybe someone can help

Regards, Daniel