problem in reading boundary conditions from cgns file(B-tech thesis).
 

I am facing problems in reading boundary conditions from cgns file while writing a preprocessor in c++. I am generating mesh in gambit and also assigning the boundary conditions there. can some one help me with this thing?? I am new to cgns, so if some one can provide a piece of code, it will be very helpful.

thanks in advance
cfd_freak