From: Klaus Spreckelsen <Klaus.Spreckelsen@...1.ruhr-uni-bochum.de>
Date: 2001-10-09T00:02:17+09:00
Subject: [ruby-talk:22242] Segmentation fault with callcc


The following program runs in an infinite loop 
on IRIX (ruby 1.6.1 (2000-09-27) [mips-irix6.5]).


class Array
   def elt(g)
      g[0].call if g[0]
      each do |i|
         callcc do |g[0]|
            return i
         end
      end
   end
end
a = [1]
g1 = []
g2 = []
x = [a.elt(g1), a.elt(g2)]
#y = a.elt(g1)
z = [a.elt(g1), a.elt(g1)]



Some other versions aborts:

a:6: [BUG] Segmentation fault
ruby 1.7.1 (2001-09-08) [i686-linux]
Abort

a:6: [BUG] Segmentation fault
ruby 1.6.3 (2001-03-19) [i686-linux]
Abort  

a:6: [BUG] Segmentation fault
ruby 1.6.4 (2001-06-04) [alphaev6-linux]
Abort

If you enable the line before last, the 
program aborts if you press Ctrl-C.


What did I wrong?

Klaus Spreckelsen