Re: [RFC PATCH 1/5] builtin/checkout: avoid usage of '!!'
From: Kaartic Sivaraam <hidden>
Date: 2017-09-20 08:10:09
From: Kaartic Sivaraam <hidden>
Date: 2017-09-20 08:10:09
On Wednesday 20 September 2017 09:30 AM, Junio C Hamano wrote:
Kaartic Sivaraam [off-list ref] writes:quoted
There was a usage for which there's no compelling reason.So, replace such a usage as with something else that expresses the intent more clearly.I actually think this is a good example of the exception-rule. The function wants to take true or false in "int", and the caller has a pointer. And !!ptr is a shorter and more established way than ptr != NULL to turn non-NULL ness into an int boolean, without having to either repeat or introducing an otherwise unnecessary temporary.
Though !!ptr might might be a shorter way to turn a pointer into an int boolean I think the documentation says pretty well why we shouldn't be using it, ".. can be extremely confusing to others". Should I drop this treating is an exception rule (or) should I keep this back? Thanks, Kaartic