[webkit-dev] !!Tests for equality comparison

[Simon Fraser]

+1 for ! liking ! when testing numeric values against zero.

Simon

> On Apr 27, 2017, at 4:33 PM, Chris Dumez <cdumez at apple.com> wrote:
> 
> I also do not like this rule when it comes to integers.
> 
> I personally think JF’s proposal to allow == 0 sounds nice. I don’t think JF was suggesting rewriting existing code (which would indeed cause a lot of churn).
> 
> --
>  Chris Dumez
> 
> 
> 
> 
>> On Apr 27, 2017, at 4:30 PM, Geoffrey Garen <ggaren at apple.com <mailto:ggaren at apple.com>> wrote:
>> 
>> I’ve never really liked this style rule, and I’ve always felt like it snuck into the style document without much discussion.
>> 
>> Even so, I usually tolerate it.
>> 
>> Geoff
>> 
>>> On Apr 27, 2017, at 4:06 PM, JF Bastien <jfbastien at apple.com <mailto:jfbastien at apple.com>> wrote:
>>> 
>>> Hello C++ fans!
>>> 
>>> The C++ style check currently say:
>>> Tests for true/false, null/non-null, and zero/non-zero should all be done without equality comparisons
>>> 
>>> I totally agree for booleans and pointers… but not for integers. I know it’s pretty much the same thing, but I it takes me slightly longer to process code like this:
>>> 
>>> int numTestsForEqualityComparison = 0:
>>> // Count ‘em!
>>> // …
>>> if (!numTestsForEqualityComparison)
>>>   printf(“Good job!”);
>>> 
>>> I read it as “if not number of tests for equality comparison”. That's weird. It takes me every slightly longer to think about, and I’ve gotten it wrong a bunch of times already. I’m not trying to check for “notness", I’m trying to say “if there were zero tests for equality comparison”, a.k.a.:
>>> 
>>> if (numTestsForEqualityComparison == 0)
>>>   printf(“Good job!”);
>>> 
>>> So how about the C++ style let me just say that? I’m not suggesting we advise using that style for integers everywhere, I’m just saying it should be acceptable to check zero/non-zero using equality comparison.
>>> 
>>> 
>>> !!Thanks (i.e. many thanks),

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