ptr-to-member-function.cpp revision 398e6b90f5e161d520a95cbf34c732a55fd3e476 
1// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++0x -S %s -o %t-64.s
2// RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s
3// RUN: %clang_cc1 -triple i386-apple-darwin -std=c++0x -S %s -o %t-32.s
4// RUN: FileCheck -check-prefix LP32 --input-file=%t-32.s %s
5// 13.3.3.2 Ranking implicit conversion sequences
6
7extern "C" int printf(...);
8
9struct A {
10int Ai;
11bool foo(int* arg) const;
12};
13
14bool A::foo(int* arg) const {
15    printf("A::foo(%d)\n", *arg);
16    return true;
17}
18
19struct B : public A {
20  void bf() { printf("B::bf called\n"); }
21};
22
23struct C : public B { };
24
25// conversion of B::* to C::* is better than conversion of A::* to C::*
26typedef void (A::*pmfa)();
27typedef void (B::*pmfb)();
28typedef void (C::*pmfc)();
29
30struct X {
31	operator pmfa();
32	operator pmfb() {
33	  return &B::bf;
34        }
35};
36
37
38void g(pmfc pm) {
39  C c;
40  (c.*pm)();
41}
42
43void test2(X x)
44{
45    g(x);
46}
47
48struct B1 {
49  bool (A::*pmf)(int*) const;
50
51  B1(int i) : pmf(&A::foo), im(i) {
52    ((A*)this->*pmf)(&im);
53  }
54
55  int im;
56};
57
58int main()
59{
60	X x;
61	test2(x);
62        B1 b = B1(1);
63  	B1 c = B1(2);
64}
65
66// CHECK-LP64: callq	__ZN1XcvM1BFvvEEv
67// CHECK-LP64: callq	__Z1gM1CFvvE
68
69// CHECK-LP32: calll	L__ZN1XcvM1BFvvEEv
70// CHECK-LP32: calll	__Z1gM1CFvvE
71