blob: f71dc3b9ba9f44d6e5f08c1d6d193a79f9af6a90 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
|
/* { dg-do run } */
/* { dg-require-ifunc "" } */
/* { dg-options "-Wno-pmf-conversions" } */
#include <stdio.h>
struct Klass
{
virtual int magic () = 0;
};
struct Klassier : Klass
{
int implementation ();
int magic ();
typedef int Func (Klass*);
static Func* resolver ();
};
int Klassier::implementation (void)
{
printf ("'ere I am JH\n");
return 0;
}
Klassier::Func* Klassier::resolver ()
{
/* GCC guarantees this conversion to be safe and the resulting pointer
usable to call the member function using ordinary (i.e., non-member)
function call syntax. */
return reinterpret_cast<Func*>(&Klassier::implementation);
}
int Klassier::magic (void) __attribute__ ((ifunc ("_ZN8Klassier8resolverEv")));
int __attribute__ ((weak)) Foo (Klass &base)
{
return base.magic ();
}
int main ()
{
Klassier obj;
return Foo (obj) != 0;
}
|