[Cocci] new to cocci, help needed
kaspar at schleiser.de
Fri Apr 21 15:23:58 CEST 2017
On 04/21/2017 11:10 AM, Julia Lawall wrote:
> On Fri, 21 Apr 2017, Kaspar Schleiser wrote:
>> Hello all,
>> I'm just beginning to write my own semantic patches, and I'm having a
>> little trouble getting the hang of it.
>> Currently I'm trying to unify all calls to a function named "f" taking a
>> pointer to a variable and the variable's size as arguments, which I want
>> to deduce using sizeof:
>> f(..., &var, sizeof(var))
>> My initial approach looks similar to this:
>> expression E1, E2;
>> - E2,
>> + sizeof(E1))
>> ... but this doesn't find e.g., "f(a, b, &test, whatever);".
>> What am I doing wrong?
> Your pattern has *E1, but you are hoping to match &E1.
> If you mean that E1 should be a random pointer-typed expression, then that
> constraint should go in the metavariable list, eg
> expression *E1;
That brings me one step further, but now I have "*&", e.g.,
Is there a way to "dereference the type"?
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