前面转了一篇文章仿vc的uuidof： http://blog.csdn.net/zzw_happy/archive/2006/05/22/749407.aspx
现在发现了一个针对gcc的，使用了gcc的typeof:
template < class T > struct hold_uuidof ... { static GUID __IID ;} ; /**/ /* this is a nice one. In MSVC++ u can do: __uuidof(Foo) __uuidof(pointer2Foo) __uuidof(refranceofFoo) and __uuidof(classAFoo). The GCC typeof() will take care of that (get it: use one's extension to implement another)*/ #define __uuidof( Q ) hold_uuidof< typeof(Q) >::__IID /**/ /* use this macro to assosiate a guid to a class/struct.*/ #define MAKE_UUIDOF_ID( class ,IID ) template <> GUID hold_uuidof < class > ::__IID = IID; /**/ /* This one is the same as above but: presupposes an IID_Interface was already defined*/ #define MAKE_UUIDOF( class ) MAKE_UUIDOF_ID( class , IID_## class )
