00001 #include <iostream>
00002 #include <fstream>
00003 #include <iomanip>
00004 #include <cstring>
00005 #include <string>
00006 #include <vector>
00007 #include <TFile.h>
00008 #include <TTree.h>
00009 #include <TString.h>
00010 #include <TBranch.h>
00011 #include <TLeaf.h>
00012 #include <TH1F.h>
00013 #include <cstdio>
00014
00015 using namespace std;
00016
00017 int main(int argc, char *argv[]){
00018 if(argc<5){
00019 cout << "please append two root files' names you want to compare " << endl;
00020 cout << "realnewrun.exe new.root treename old.root treename [output.root]" << endl;
00021 return 1;
00022 }
00023
00024
00025 TFile f1(argv[1]);
00026 TTree *t1 = (TTree*)f1.Get(argv[2]);
00027 TFile f2(argv[3]);
00028 TTree *t2 = (TTree*)f2.Get(argv[4]);
00029 TString str_output = "output.root";
00030 if(argc>5) str_output = argv[5];
00031 TFile f3(str_output,"recreate");
00032 TTree *t3 = new TTree("track","track");
00033 int newrun, newevt;
00034 t3->Branch("run", &newrun, "run/I");
00035 t3->Branch("event", &newevt, "event/I");
00036
00037 int run, evt;
00038 t1->SetBranchAddress("run", &run);
00039 t1->SetBranchAddress("event", &evt);
00040 char str[255];
00041 for(int i=0; i<t1->GetEntries(); i++){
00042 t1->GetEntry(i);
00043 sprintf(str, "run==%d && event==%d", run, evt);
00044 if(t2->GetEntries(str)>0) cout << "str: " << str << " run: " << run << " event: " << evt << endl;
00045 else{
00046 newrun = run;
00047 newevt = evt;
00048 t3->Fill();
00049 }
00050 }
00051
00052 f1.Close();
00053 f2.Close();
00054 f3.cd();
00055 t3->Write();
00056 f3.Close();
00057 return 0;
00058 }
