Re: [PATCH 1/7]: Fix sparc64 setjmp implementation.

[Robert Millan]

On Thu, Mar 05, 2009 at 08:04:07AM -0500, Isaac Dupree wrote:
> > We've been using "unsigned long" for storing virtual addresses in the
> > Linux kernel for 10+ years and it works just fine.  :-)
> 
> and Linux kernel uses GCC compiler in precise ways
> 
> I believe that ptrdiff_t is the proper standardized type for an integer the 
> size of a pointer.  except... it's always signed :-)
> 
> Can you just use pointer types and pointer arithmetic?
> 
> also, standards aside, a common way to get such a type, is "configure" script 
> testing various possibilities like "unsigned long" and "unsigned long long" 
> and seeing which one is the right size for the target architecture. (not sure 
> if that works when cross-compiling though)

I think we're already using longs this way in quite a few places.  It's not
such a big deal IMHO.

-- 
Robert Millan

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