Re: [Cocci] coccinelle: bool if (foo) return true; else return false;

From: Michael Stefaniuc
Date: Wed Apr 20 2016 - 03:19:27 EST


On 04/19/2016 09:15 PM, Julia Lawall wrote:
>
>
> On Tue, 19 Apr 2016, Joe Perches wrote:
>
>> There's ~150 of these in the kernel.
>>
>> Maybe there's use for this conversion to be added
>> to scripts/coccinelle/misc/boolreturn.cocci or in
>> a separate file.
>>
>> $ cat booltruefalse.cocci
>> @@
>> identifier fn;
>> expression e;
>> typedef bool;
>> symbol true;
>> symbol false;
>> @@
>>
>> bool fn ( ... )
>> {
>> <...
>> - if (e) return true; else return false;
>> + return e;
Shouldn't that be:
return !!e
?


>> ...>
>> }
>>
>> @@
>> identifier fn;
>> expression e;
>> @@
>>
>> bool fn ( ... )
>> {
>> <...
>> - if (e) return false; else return true;
>> + return !e;
>> ...>
>> }
>
> Thanks for the suggestion. I will take care of it shortly.


bye
michael