Compiler Error C3761
'function': 'retval' can only appear on the last argument of a function
The retval attribute was used on a function argument that was not the last argument in the list.
The following sample generates C3761:
// C3761.cpp
#define _ATL_ATTRIBUTES 1
#include <atlbase.h>
#include <atlcom.h>
[ module(name=test) ];
[dispinterface]
__interface I
{
[id(1)] HRESULT func([out, retval] int* i, [in] int j);
// try the following line instead
// [id(1)] HRESULT func([in] int i, [out, retval] int* j);
};
[coclass]
struct C : I { // C3761
HRESULT func(int* i, int j)
// try the following line instead
// HRESULT func(int j, int* i)
{
return S_OK;
}
};
int main()
{
}