>>>>> "C" == Christoph Rippel <crippel / primenet.com> writes: C> maybe this a silly question. Both Fixnum and String provide a C> hard coded #succ implementation - an override is quietly ignored What have you tried ? pigeon% cat b.rb #!/usr/bin/ruby class Fixnum def succ self - 1 end end p 15.succ pigeon% b.rb 14 pigeon% C> and #succ does not show up in Fixnum.methods either. (Ruby has a Try ruby -e 'p 12.methods' also #prec is a method of Precision (included in Integer) C> pretty interesting idea of 'A'..'k' versus 'A'..'kk' by the way). C> I am curious on why the analog #prec methods is missing? You have a thread about this subject in [ruby-talk:5862] http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/~poffice/mail/ruby-talk/5862 Guy Decoux