зеркало из https://github.com/microsoft/clang-1.git
71 строка
1.2 KiB
C++
71 строка
1.2 KiB
C++
// RUN: %clang_cc1 -triple x86_64-apple-darwin -std=c++0x -S %s -o %t-64.s
|
|
// RUN: FileCheck -check-prefix LP64 --input-file=%t-64.s %s
|
|
// RUN: %clang_cc1 -triple i386-apple-darwin -std=c++0x -S %s -o %t-32.s
|
|
// RUN: FileCheck -check-prefix LP32 --input-file=%t-32.s %s
|
|
// 13.3.3.2 Ranking implicit conversion sequences
|
|
|
|
extern "C" int printf(...);
|
|
|
|
struct A {
|
|
int Ai;
|
|
bool foo(int* arg) const;
|
|
};
|
|
|
|
bool A::foo(int* arg) const {
|
|
printf("A::foo(%d)\n", *arg);
|
|
return true;
|
|
}
|
|
|
|
struct B : public A {
|
|
void bf() { printf("B::bf called\n"); }
|
|
};
|
|
|
|
struct C : public B { };
|
|
|
|
// conversion of B::* to C::* is better than conversion of A::* to C::*
|
|
typedef void (A::*pmfa)();
|
|
typedef void (B::*pmfb)();
|
|
typedef void (C::*pmfc)();
|
|
|
|
struct X {
|
|
operator pmfa();
|
|
operator pmfb() {
|
|
return &B::bf;
|
|
}
|
|
};
|
|
|
|
|
|
void g(pmfc pm) {
|
|
C c;
|
|
(c.*pm)();
|
|
}
|
|
|
|
void test2(X x)
|
|
{
|
|
g(x);
|
|
}
|
|
|
|
struct B1 {
|
|
bool (A::*pmf)(int*) const;
|
|
|
|
B1(int i) : pmf(&A::foo), im(i) {
|
|
((A*)this->*pmf)(&im);
|
|
}
|
|
|
|
int im;
|
|
};
|
|
|
|
int main()
|
|
{
|
|
X x;
|
|
test2(x);
|
|
B1 b = B1(1);
|
|
B1 c = B1(2);
|
|
}
|
|
|
|
// CHECK-LP64: callq __ZN1XcvM1BFvvEEv
|
|
// CHECK-LP64: callq __Z1gM1CFvvE
|
|
|
|
// CHECK-LP32: call L__ZN1XcvM1BFvvEEv
|
|
// CHECK-LP32: call __Z1gM1CFvvE
|