From: Tim Hunter <TimHunter@...>
Date: 2008-06-10T06:01:57+09:00
Subject: Re: C++ 2 Ruby

Jed Kowalski wrote:
> Avdi Grimm wrote:
>> You might have better luck asking for help with specific sections of
>> code, rather than asking us to rewrite a whole program.  Try doing a
>> best-guest translation to Ruby on your own, and asking about the parts
>> you have trouble with.
> 
> ok so, here's the first problem:
>    def initialize (cen, ile, nn)
>        @price=cen
>        @amount=ile
>        @name=nn
>        @bought=0
>      end
> 
> 
>     def change(x)
>           amount--
>           bought++
>           return x-price //WHATS WRONG HERE?
>     end
> 
> and I get:
> 
> gut.rb:13: void value expression
>           return x-cena
>                   ^
> gut.rb:13: syntax error, unexpected tIDENTIFIER, expecting kEND
>           return x-cena
> 

Well, if you want to refer to the @amount, @bought, and @price instance 
variables in the change() method you have to use the correct names. Also 
Ruby doesn't have the -- and ++ methods.

def change(x)
    @amount -= 1
    @bought += 1
    return x - @price
end





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