Re: Userspace compiler support of "long long"

From: Kyle Moffett
Date: Thu Jun 28 2007 - 07:54:22 EST


On Jun 27, 2007, at 23:57:54, Matthew Wilcox wrote:
On Wed, Jun 27, 2007 at 06:30:52PM -0400, Kyle Moffett wrote:
Then all 64-bit archs have:
typedef signed long __s64;
typedef unsigned long __u64;

While all 32-bit archs have:
typedef signed long long __s64;
typedef unsigned long long __u64;

include/asm-parisc/types.h:typedef unsigned long long __u64;

For both 32 and 64-bit.

include/asm-sh64/types.h:typedef unsigned long long __u64;
include/asm-x86_64/types.h:typedef unsigned long long __u64;

So that's three architectures that violate your first assertion.

Oh, ok, that makes it even easier to say this with certainty: Changing the other 64-bit archs to use "long long" for their 64-bit numbers will not cause additional warnings. I'm also almost certain there are no architectures which use "long long" for 128-bit integers. (Moreover, I can't find hardly anything which does 128-bit integers at all).

Cheers,
Kyle Moffett

-
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/