#include "Class1.h"
#include "Class2.h"
#include "TFile.h"
#include "TTree.h"

void makeTwoTrees() {
    TFile *f   = new TFile("twotrees.root", "RECREATE");
    TTree *t1  = new TTree("tree1", "tree1");
    TTree *t2  = new TTree("tree2", "tree2");

    Class1 *c1 = new Class1();
    Class2 *c2 = new Class2();

    t1->Bronch("class1", "Class1", &c1);
    t2->Bronch("class2", "Class2", &c2);

    c1->setVal1(1.);
    c2->setVal2(2.);

    t1->Fill();
    t2->Fill();

    f->Write();
    f->Close();
}