[Cocci] cocci: char* indexing style for linux

[lars@metafoo.de (Lars-Peter Clausen)]

On 08/18/2014 11:49 AM, Julia Lawall wrote:
> Actually, isn't the whoe structure field the wrong way to go about it
> here?  Don't we just want a pointer-typed expression, of whatever form it
> has?  That will unfortunately require lots of type information, but I
> don't see how to do it otherewise, because any kind of variable or
> structure field reference can also be an integer.  There isno reason why
> eg the structure field reference is the array.
>
> expression *e; matches a pointer.

The problem is that (foo->bar + 10) with foo->bar being a pointer is still a 
expression of the pointer type and so e will match the whole expression 
rather than just matching foo->bar.