Re: [PATCH 1/2] Add C99-style constructor macros for specific-sized integers

[Russell King]

On Mon, Mar 03, 2008 at 10:57:32AM +0000, David Howells wrote:
> H. Peter Anvin <hpa@xxxxxxxxx> wrote:
> 
> > +#define S8_C(x)	 x
> > +#define U8_C(x)  x ## U
> > +#define S16_C(x) x
> > +#define U16_C(x) x ## U
> > +#define S32_C(x) x
> > +#define U32_C(x) x ## U
> > +#define S64_C(x) x ## LL
> > +#define U64_C(x) x ## ULL
> 
> And #if defined(__ASSEMBLY__), just splat x through as is.

We already have something like this on ARM - include/asm-arm/memory.h

/*
 * Allow for constants defined here to be used from assembly code
 * by prepending the UL suffix only with actual C code compilation.
 */
#ifndef __ASSEMBLY__
#define UL(x) (x##UL)
#else
#define UL(x) (x)
#endif

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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