I don't know the meaning of th
 

I don't know the meaning of the macro __CINT__ when i reading the source code of CintDefs.H
which reads as follows:

#ifdef __CINT__
#define tmp Foam::tmp
#define UList Foam::UList
#define List Foam::List
#define InfoProxy Foam::InfoProxy
#endif

I want to ask what is __CINT__, and why use it?

I assume the macros are needed
 

I assume the macros are needed to overcome parsing and/or include weaknesses in CINT (http://root.cern.ch/twiki/bin/view/ROOT/CINT).

I don't know the current status (of CINT or its integration into OpenFOAM).