From: SonOfLilit <sonoflilit@...>
Date: 2007-01-30T20:25:06+09:00
Subject: Re: 0xff000000

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Looking at the ruby source showed me that ruby /can/ translate 0xff000000 to
a ulong.

The problem was a typo in my code, one extra 0.

Aur Saraf

On 1/30/07, SonOfLilit <sonoflilit@gmail.com> wrote:
>
> Hello.
>
> I am running on a 32 bit machine.
>
> I need to pass SDL the unsigned long 0xff000000 as a mask.
>
>   s = SDL::Surface.new_from(image_data, screen.w, screen.h, 32, screen.w*4
> ,
>                             0x00ff0000, 0x0000ff00, 0x000000ff,
> 0xff0000000)
>
> fails with "bignum too big to convert into `unsigned long' (RangeError)"
>
> which is very understandable, considering that Ruby uses the MSB of a
> VALUE
> and thus Fixnums can only be 31bit on 32bit machines.
>
> What's the best idiom to get the mask so I can pass it?
>
> Thanks,
>
> Aur
>
>

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