Frama-C-discuss mailing list archives

This page gathers the archives of the old Frama-C-discuss archives, that was hosted by Inria's gforge before its demise at the end of 2020. To search for mails newer than September 2020, please visit the page of the new mailing list on Renater.

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

[Frama-c-discuss] lval and lhost

  • Subject: [Frama-c-discuss] lval and lhost
  • From: hollas at (Boris Hollas)
  • Date: Thu, 14 Jun 2012 16:38:32 +0200


I want to identify the formal parameter that corresponds to an lval
inside a function, as in
foo(int *x) {*x = 0}
bar(struct S *s) {s->a = 0}.

However, a formal f has type Cil_types.varinfo while an lval l has type
Cil_types.lval, so they can't be compared. If l matches (Var vi, _),
then I assume vi and f can be tested for equality. I feel that this is
more complicated if l matches (Mem e, _). I assume that in this case
e.enode should match Lval l', so a recursive function could be used. Is
this true?

Also, how are struct S *s and s->a represented in the above example? I
assume that 
- struct S *s is a varinfo
- s->a matches (Mem e, Field (fi, NoOffset)), where e.enode matches
Lval(Var v, NoOffset), where v equals s and equals a.
Best regards,