Jan Engelhardt wrote:
> On Jul 27 2007 10:59, Al Viro wrote:
>
>> On Fri, Jul 27, 2007 at 11:44:07AM +0200, Yoann Padioleau wrote:
>>
>>> buf = alloc_safe_buffer(device_info, ptr, size, dir);
>>> - if (buf == 0) {
>>> + if (buf == NULL) {
>>>
>> if (!buf)
>> surely...
>>
>
> Makes it look like it's used as a bool.
>
But the conditional checking for a pointer and a boolean is the same; 0
== NULL == 'false' and the rest is valid/'true'. So IMHO it is a cleaner
way to write it. But then again, some people like to abuse the '!' on
"regular" variables.
Richard Knutsson