Hi Rene
Does this apply to all gROOT functions or only the Reset command? Have I
missed in the documentation somewhere as to the "why" this should not be
done?
Thanks
Darren
On Mon, 7 Jun 2004, Rene Brun wrote:
> gROOT->Reset() should not be called in a named script or a compiled program.
>
> Rene Brun
>
> Darren Grant wrote:
> >
> > Hi
> >
> > I have come across an error I dont understand in running some root code.
> > I have tried to include the
> >
> > gROOT->Reset();
> >
> > command in my code. I compile without errors but when I run the code I
> > get the following error:
> >
> > *** Break *** segmentation violation
> > Generating stack trace...
> > 0x4068b65e in G__scratch_globals_upto + 0x27 from
> > /home/dgrant/root/lib/libCint.so
> > 0x40176439 in TCint::ResetGlobals() + 0x21 from
> > /home/dgrant/root/lib/libCore.so
> > 0x4013a698 in TROOT::Reset(char const*) + 0x32 from
> > /home/dgrant/root/lib/libCore.so
> > 0x08049067 in main + 0x2f from matread
> > 0x42015574 in __libc_start_main + 0xe4 from /lib/tls/libc.so.6
> > 0x08048f9d in TFile::TFile[in-charge](char const*, char const*, char
> > const*, int) + 0x31 from matread
> > Abort (core dumped)
> >
> > A simplified version of the code is:
> >
> > #include <cstdio>
> > #include <iostream>
> > #include <string>
> > #include "TFile.h"
> > #include "TTree.h"
> > #include "TH2.h"
> > #include "TCanvas.h"
> > #include "TVector.h"
> > #include "TROOT.h"
> > #include "TCint.h"
> >
> > using namespace std;
> >
> > TROOT rootBase("analysis","ROOT analysis environment");
> > int main()
> > {
> > gROOT->Reset();
> > TFile *file = new TFile ("test.root", "RECREATE");
> > TTree *tree = new TTree ("tree", "Testing");
> >
> > }
> >
> > And this is compiled with a makefile:
> >
> > # Makefile
> > #
> > ROOTLIBS = $(shell root-config --libs) -lMinuit #-lTable
> > -lHtml
> > ROOTGLIBS = $(shell root-config --glibs)
> > ROOTINCLUDE ?= $(shell root-config --incdir)
> > MATLABDIR = /data4/dgrant/Matlab_Inst/extern/lib/glnx86
> > MATLABD2 = /data4/dgrant/Matlab_Inst/bin/glnx86
> >
> > CXX = g++
> > CXXFLAGS = -O2 -Wall -fPIC -I$(ROOTINCLUDE)
> >
> > OBJS = matread.o
> >
> > matread: $(OBJS)
> > $(CXX) $(CXXFLAGS) $(ROOTLIBS) $(ROOTGLIBS) -L$(MATLABDIR) -lmat
> > -lmx -l
> > mmfile -lmwservices -L$(MATLABD2) -lmatlb -lmex -lmwmpath -lmwudd -o $@ $^
> >
> > matread.d: matread.cxx
> > @echo "Generating dependency file $@"
> > @set -e; rm -f $@
> > @$(CXX) -M $(CXXFLAGS) $< > $@.tmp
> > @sed 's,\($*\)\.o[ :]*,\1.o $@ : ,g' < $@.tmp > $@
> > @rm -f $@.tmp
> >
> > include matread.d
> >
> > matread.o: matread.cxx matread.h
> > $(CXX) -c $(CXXFLAGS) $<
> >
> > clean:
> > rm -f *.o
> > rm -f *.d
> >
> > Has anyone come across this before and maybe offer some advice?
> >
> > Thanks so much!
> > Cheers
> > Darren
>
This archive was generated by hypermail 2b29 : Sun Jan 02 2005 - 05:50:08 MET