Hi, > rootcint TestCint.cc -c -D__PTRDIFF_TYPE__ -I/usr/gnu/lib/g++-include Have a look at what the cint originally did. It said : >> Limitation: can not handle macro __PTRDIFF_TYPE__ longint Use +P or -p option >> FILE:/usr/gnu/lib/g++-include/_G_config.h LINE:21 Note here the "longint". I'm pretty sure that the original source code was "long int" ( see the SPACE in between ). > ( ... ) > not generate correct Streamer code for list<int>. You will have to > modify the generated Streamer by hand to correctly loop over the > list<int> object. Using ROOT's TArrayI will work without problems. I think that the problem is more general. Most of the people have some already existing code ( sometimes C/C++, sometimes fortran ). I think that there is a need to write a tutorial "How can I use/adapt my existing code for root". Jacek.
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