ms-iunknown-template-function.cpp
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// RUN: %clang_cc1 -fsyntax-only -verify -fms-extensions %s
// expected-no-diagnostics
typedef long HRESULT;
typedef unsigned long ULONG;
typedef struct _GUID {
unsigned long Data1;
unsigned short Data2;
unsigned short Data3;
unsigned char Data4[8];
} GUID;
typedef GUID IID;
// remove stdcall, since the warnings have nothing to do with
// what is being tested.
#define __stdcall
extern "C" {
extern "C++" {
struct __declspec(uuid("00000000-0000-0000-C000-000000000046"))
IUnknown {
public:
virtual HRESULT __stdcall QueryInterface(
const IID &riid,
void **ppvObject) = 0;
virtual ULONG __stdcall AddRef(void) = 0;
virtual ULONG __stdcall Release(void) = 0;
template <class Q>
HRESULT __stdcall QueryInterface(Q **pp) {
return QueryInterface(__uuidof(Q), (void **)pp);
}
};
}
}
__interface ISfFileIOPropertyPage : public IUnknown{};