Re: [PATCH] ULL fixes for qlogicfc
From: H. Peter Anvin (hpa_at_zytor.com)
Date: 09/29/03
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Date: Mon, 29 Sep 2003 14:24:15 -0700 To: Jeff Garzik <jgarzik@pobox.com>
Jeff Garzik wrote:
> H. Peter Anvin wrote:
>
>> 0xffffffff is unsigned int and will be promoted to
>
> 0xffffffff without a prefix is signed.
No, it's not.
ISO/IEC 9899:1999(E) §6.4.4.1, page 55f:
5 The type of an integer constant is the first of the corresponding list
in which its value can be represented.
Suffix Decimal Constant Octal or Hexadecimal
Constant
none int int
long int unsigned int
long long int long int
unsigned long int
long long int
unsigned long long int
... so 0x7fffffff is signed int, but 0xffffffff is unsigned int on an
I32-model system (all Linux systems are I32-model.)
-hpa
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