I try to run ROOT on the ATLAS cluster (hp version 10).
I use:
ROOTSYS = /afs/cern.ch/na49/library.4/ROOT/v2.13/hp700_ux102/root/
LD_LIBRARY_PATH =
/afs/cern.ch/na49/library.4/ROOT/v2.13/hp700_ux102/root/lib
As an interactive process( $ROOTSYS/bin/root ), ROOT works fine.
I now try to write a simple c++ code which calls ROOT and tries to create
an histo and dump it. This histo is badly created (xmin=xmax). I don't
understand why.
Please find below the makefile and the simple code a.cxx
Many thanks in advance for your help.
Pascal Perrodo.
-------------------------------------------------------
#
# Makefile for compile of c++ code with call to ROOT libs
#
C++FLAGS = -g -I$(ROOTSYS)/include
LDFLAGS = -g
CC = cc
CXX = CC
LINKER = $(CXX)
ROOTLIBS = -L$(ROOTSYS)/lib -lNew -lBase -lCint -lClib -lCont -lFunc\
-lGraf -lGraf3d -lHist -lHtml -lMatrix -lMeta -lMinuit -lNet \
-lPostscript -lProof -lTree -lUnix -lZip
ROOTGLIBS = -lGpad -lGui -lGX11 -lX3d
LIBS = $(ROOTLIBS) -lm
GLIBS = $(ROOTLIBS) $(ROOTGLIBS) -L/usr/lib/X11R5 \
-lXpm -lX11 -lm -ldld
CCNAME = a
OBJ = $(CCNAME).o
SRC = $(CCNAME).cxx
all: $(CCNAME)
$(CCNAME): $(OBJ) $(SRC)
$(LINKER) $(LDFLAGS) -o $(CCNAME) $(OBJ) $(GLIBS)
$(CCNAME).o: $(SRC)
$(CXX) -c $(CCNAME).cxx $(C++FLAGS)
-----------------------------------------------------------------------
//-------------------------------------------------------------------
//
// Example of ROOT libraries called in a C++ code
//
// Pascal Perrodo 25/02/1997
//-------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <iostream.h>
#include <math.h>
#include "TROOT.h"
#include "TH1.h"
#include "TCanvas.h"
// needed by Motif
extern void InitGui();
VoidFuncPtr_t initfuncs[] = { InitGui, 0 };
TROOT rootBase("toto","test root",initfuncs);
int main(int argc,char **argv)
{
TH1F *h1;
h1 = new TH1F("h1","Histogram 1",100,0.,100.);
h1->Dump();
} // end of main
----------------------------------------------------------------------