Re: [PATCH -mm] Introduce U16_MAX and U32_MAX

[Jan Engelhardt]

On Jul 31 2007 11:57, Andrew Morton wrote:
>> --- a/include/linux/kernel.h
>> +++ b/include/linux/kernel.h
>> @@ -30,6 +30,9 @@ extern const char linux_proc_banner[];
>>  #define LLONG_MIN	(-LLONG_MAX - 1)
>>  #define ULLONG_MAX	(~0ULL)
>>  
>> +#define U16_MAX		((u16) ~0U)
>> +#define U32_MAX		((u32) ~0U)
>> +
>
>hm, I'd have thought that there's a risk of gcc warnings here, forcing
>0xffffffff into a u16, but apparently not.

No, since it is casted (= explicitly truncated).


	Jan
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