From: Tim Conner <crofty_james@...>
Date: 2008-01-11T02:27:33+09:00
Subject: Re: Question about Hex => Signed Int

Gary Wright wrote:
> The tricky part is dealing with the twos compliment notation but
> String#to_i will do the hex/decimal conversion:
> 
>  >> "0xFF467A7B".to_i(16) - 0x100000000
> => -12158341
> 
>  >> "0x38CFEF".to_i(16)
> => 3723247
> 
> Gary Wright

Thanks for that.  Is there a ruby function which I can pass a hex number 
and it works out if it is +/- and then returns the correct decimal 
value?
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