Re: [PATCH] Staging: rtl8188eu: Remove zero testing pointer typed value

Joe Perches
2015-04-03T17:01:16Z

On Fri, 2015-04-03 at 19:51 +0300, Dan Carpenter wrote:
> On Fri, Apr 03, 2015 at 10:12:11PM +0530, Amitoj Kaur Chawla wrote:
> > Removes variable comparison with 0 by using !.
>
> Sometimes testing for zero makes sense.
> When you write code, you are
> telling a story. If you are talking about zero as a number then it
> can make sense. If it's zero as a boolean then it doesn't make sense.

Very true.

> Also strcmp() and similar should always be done as == 0, < 0 or != 0
> because that is the idiom:

Less true.

When testing for equality, !strcmp is very common.

There are ~2500 uses of !strcmp in the kernel tree vs
~1500 uses of strcmp() == or !=