Dear Wouter, There are a couple of problems here. 1) class A::B { }; Cint can not take this syntax. Please define A::B within class A. This is a Cint problem. I'll put this into enhancement list. class A { public: class B { // something }; }; 2) ClassDef, ClassImp problems It seems like the problem is due to the way preprocessor works and how it is used. There is nothing I can do in Cint. In other words, you will have this problem even without Cint. I guess you'll need special macro for this. Something like below ClassDefX(name1,name2,id) ClassImpX(name1,name2,id) Rene and Fons, do you have any comments? Thank you Masaharu Goto ======================================================================= Dear developers, I would like to pass a nested class into CINT but the ClassImp macro (in particluar the _ClassInit_ macro) seems not suitable for this. To be more concrete: I want to do something like: class A { public: class B; ClassDef(A,1) } class A::B { ClassDef(A::B,1) } ClassImp(A::B) but get a compilation error R__InitA' does not have a nested type named `B' (which is caused by the _ClassInit_ macro trying to define a global function R__Init##name which becomes R__InitA::B) Would it be possible to invent a fix for this behaviour ? Or is it anyway not possible to use nested types in CINT ? Thanks a lot ! Wouter
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