Re: Userspace compiler support of "long long"

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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

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