#include "TFile.h"
#include "TTree.h"

void main_forum()
{
	TFile f("solo_1.root");
	f.GetListOfKeys()->Print();
	TTree* t = (TTree*)f.Get("helium_tree");
	t->StartViewer();
}

/*

root [0] 
Processing main_class.cpp+...
Info in <TUnixSystem::ACLiC>: creating shared library /home/sncuser/William/main_enternship/./main_class_cpp.so
(TTreeViewer *) 0x3ac5c20
File name : solo_1.root
root [1] 
 *** Break *** segmentation violation



===========================================================
There was a crash.
This is the entire stack trace of all threads:
===========================================================
#0  0x00007f4c88e564ca in __GI___waitpid (pid=9634, stat_loc=stat_loc
entry=0x7ffce4e47ac0, options=options
entry=0) at ../sysdeps/unix/sysv/linux/waitpid.c:29
#1  0x00007f4c88dcffbb in do_system (line=<optimized out>) at ../sysdeps/posix/system.c:148
#2  0x00007f4c899c8dad in TUnixSystem::StackTrace() () from /opt/root/lib/libCore.so
#3  0x00007f4c899cb39c in TUnixSystem::DispatchSignals(ESignals) () from /opt/root/lib/libCore.so
#4  <signal handler called>
#5  0x0000000000000000 in ?? ()
#6  0x00007f4c71b7eab8 in TTreeViewer::ExecuteDraw() () from /opt/root/lib/libTreeViewer.so
#7  0x00007f4c71b83882 in TTreeViewer::ProcessMessage(long, long, long) () from /opt/root/lib/libTreeViewer.so
#8  0x00007f4c7146a8e9 in TGFrame::HandleClientMessage(Event_t*) () from /opt/root/lib/libGui.so
#9  0x00007f4c714789e1 in TGMainFrame::HandleClientMessage(Event_t*) () from /opt/root/lib/libGui.so
#10 0x00007f4c71478ce7 in TGFrame::HandleEvent(Event_t*) () from /opt/root/lib/libGui.so
#11 0x00007f4c714fd718 in TGClient::HandleEvent(Event_t*) () from /opt/root/lib/libGui.so
#12 0x00007f4c714fda35 in TGClient::ProcessOneEvent() () from /opt/root/lib/libGui.so
#13 0x00007f4c714fda9d in TGClient::HandleInput() () from /opt/root/lib/libGui.so
#14 0x00007f4c899cbc38 in TUnixSystem::DispatchOneEvent(bool) () from /opt/root/lib/libCore.so
#15 0x00007f4c898ce4e4 in TSystem::InnerLoop() () from /opt/root/lib/libCore.so
#16 0x00007f4c898cd01f in TSystem::Run() () from /opt/root/lib/libCore.so
#17 0x00007f4c898f4d9f in TApplication::Run(bool) () from /opt/root/lib/libCore.so
#18 0x00007f4c89d36fd7 in TRint::Run(bool) () from /opt/root/lib/libRint.so
#19 0x0000000000400c1c in main ()
===========================================================


The lines below might hint at the cause of the crash.
You may get help by asking at the ROOT forum http://root.cern.ch/forum.
Only if you are really convinced it is a bug in ROOT then please submit a
report at http://root.cern.ch/bugs. Please post the ENTIRE stack trace
from above as an attachment in addition to anything else
that might help us fixing this issue.
===========================================================
#5  0x0000000000000000 in ?? ()
#6  0x00007f4c71b7eab8 in TTreeViewer::ExecuteDraw() () from /opt/root/lib/libTreeViewer.so
#7  0x00007f4c71b83882 in TTreeViewer::ProcessMessage(long, long, long) () from /opt/root/lib/libTreeViewer.so
#8  0x00007f4c7146a8e9 in TGFrame::HandleClientMessage(Event_t*) () from /opt/root/lib/libGui.so
#9  0x00007f4c714789e1 in TGMainFrame::HandleClientMessage(Event_t*) () from /opt/root/lib/libGui.so
#10 0x00007f4c71478ce7 in TGFrame::HandleEvent(Event_t*) () from /opt/root/lib/libGui.so
#11 0x00007f4c714fd718 in TGClient::HandleEvent(Event_t*) () from /opt/root/lib/libGui.so
#12 0x00007f4c714fda35 in TGClient::ProcessOneEvent() () from /opt/root/lib/libGui.so
#13 0x00007f4c714fda9d in TGClient::HandleInput() () from /opt/root/lib/libGui.so
#14 0x00007f4c899cbc38 in TUnixSystem::DispatchOneEvent(bool) () from /opt/root/lib/libCore.so
#15 0x00007f4c898ce4e4 in TSystem::InnerLoop() () from /opt/root/lib/libCore.so
#16 0x00007f4c898cd01f in TSystem::Run() () from /opt/root/lib/libCore.so
#17 0x00007f4c898f4d9f in TApplication::Run(bool) () from /opt/root/lib/libCore.so
#18 0x00007f4c89d36fd7 in TRint::Run(bool) () from /opt/root/lib/libRint.so
#19 0x0000000000400c1c in main ()
===========================================================

*/

/*

root [0] TFile f("solo_1.root")
(TFile &) Name: solo_1.root Title: 
root [1] TTree* t = (TTree*)f.Get("helium_tree");
root [2] t->StartViewer()
(TTreeViewer *) 0x36f06c0
File name : solo_1.root
root [3] Info in <TCanvas::MakeDefCanvas>:  created default TCanvas with name c1
Info in <TCanvas::MakeDefCanvas>:  created default TCanvas with name c1

*/