[Bug c/16966] New: warning about (in)copatible pointer types **const / *const*const

[schaum at uni-paderborn dot de]

Compiling following code with gcc results in the shown error. Since x in f() is
more restricted than ppx in main(), it should be ok (like for g())!?

// gcc 3.2.2 / 3.3.3 / 3.4.1
// warning: passing arg 1 of `f' from incompatible pointer type

void f(const int *const *const x) {
}

void g(const int *const x) {
}

int main(int argc, char * argv[])
{
  int x;
  int * px = &x;
  int **const ppx = &px;

  f(ppx);
  g(px);

  return 0;
}

-- 
           Summary: warning about (in)copatible pointer types **const /
                    *const*const
           Product: gcc
           Version: 3.4.1
            Status: UNCONFIRMED
          Severity: minor
          Priority: P2
         Component: c
        AssignedTo: unassigned at gcc dot gnu dot org
        ReportedBy: schaum at uni-paderborn dot de
                CC: gcc-bugs at gcc dot gnu dot org


http://gcc.gnu.org/bugzilla/show_bug.cgi?id=16966