From: Love U Ruby <lists@...>
Date: 2013-03-17T23:10:09+09:00
Subject: Re: Confusion with `nil` output from the method Symbol#<=>

Hans Mackowiak wrote in post #1101981:
> both the functions return nil because
>
> :x <=> "x" , "x" is not a symbol, so return nil

I understand the above.

> "x" <=> :x , :x does not respond to to_str, so return nil

But the above one is confusing. What it returns from the C code:

return rb_str_cmp_m( ? , rb_sym_to_s(other). As string would fail on 
rb_sym_to_s("x")

>> "x".interim
NoMethodError: undefined method `interim' for "x":String
        from (irb):8
        from C:/Ruby200/bin/irb:12:in `<main>'

> if you "couldn't understand" C code, stop reading it and look at more
> easier tutorials

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