lkml.org 
[lkml]   [2008]   [Apr]   [25]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 01/24] types: create <asm-generic/int-*.h>
Matthew Wilcox wrote:
> On Fri, Apr 25, 2008 at 12:10:40PM -0700, H. Peter Anvin wrote:
>> Well, compatibility with userspace is probably one aspect of that.
>> x86-64 is the odd man out there, it defines __s64 as "long long" even
>> for userspace, even though int64_t from <stdint.h> is "long". This,
>> IMO, is the Wrong Thing, but it's a separate set of changes.
>>
>> The right thing to do is probably to always use "long long" in the
>> kernel, while defining __s64 et al as "long" on 64-bit platforms when
>> not under __KERNEL__.
>>
>> Again, this is a separate set of changes from this patchset, which is
>> just a code transformation.
>
> Understood, and agreed. It just seemed like an opportune time to
> mention the problem of printing a u64.
>

I have to admit to liking the Windows extension %I64u for this kind of
stuff. Unfortunately gcc/glibc decided to use I for internationalized
digits instead :(

-hpa


\
 
 \ /
  Last update: 2008-04-25 21:41    [W:1.191 / U:0.028 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site