From: timr <timrandg@...>
Date: 2011-01-02T13:25:24+09:00
Subject: 1.respond_to? :define_singleton_method  # => true

In 1.9,
>> 1.respond_to? :define_singleton_method
=> true
>> 1.methods.include?(:define_signleton_method)
=> true
>> 1.define_singletone_method(:new_method){}
NoMethodError: undefined method `define_singletone_method' for
1:Fixnum
	from (irb):7
	from /usr/local/bin/irb19:12:in `<main>'

It therefore seems that 1.respond_to? :define_singleton_method should
return false as it did in 1.8.7.
>> RUBY_VERSION
=> "1.8.7"
>> 1.respond_to? :define_singleton_method
=> false

Does anyone understand why Fixnum objects list this method but denies
knowing of it, when they are sent the message?
Thanks,
Tim