#include "TH1.h"
#include <iostream>
#include <string>
#include <vector>

int main() {
	std::vector<TH1F> HistList;
	std::vector<std::string> HistName{"a","b","c","d","e"};
	for (auto name: HistName) {
		TH1F hist(name.c_str(),"test",100,-3,3);
		hist.FillRandom("gaus",10000);
		HistList.push_back(hist);
        std::cout<<"Histo " <<name<<" is stored at: "<< &(HistList.back())<<std::endl;
	}

    std::cout<<"*********Test auto loop*********:"<<std::endl;
	std::vector<TH1F*>  HistPtrList;
	for (auto hist: HistList) {
		HistPtrList.push_back(&hist);
        std::cout<<"Pushing histo "<<hist.GetName()<<" with address: "<< &(hist) <<std::endl;
	}
    for (auto histptr: HistPtrList) {
        std::cout<<"Trying to get histo name: "<<histptr->GetName()<<std::endl;
	}


    std::cout<<"*********Test auto& loop*********:"<<std::endl;
    std::vector<TH1F*> HistPtrList2;
	for (auto& hist: HistList) {
		HistPtrList2.push_back(&hist);
        std::cout<<"Pushing histo "<<hist.GetName()<<" with address: "<< &(hist) <<std::endl;
	}
    for (auto histptr: HistPtrList2) {
        std::cout<<"Trying to get histo name: "<<histptr->GetName()<<std::endl;
	}

    std::cout<<"*********Test i loop*********:"<<std::endl;
    std::vector<TH1F*>  HistPtrList3;
    for (int i=0; i <HistList.size(); ++i) {
		HistPtrList3.push_back(&(HistList[i]));
        std::cout<<"Pushing histo "<<HistList[i].GetName()<<" with address: "<< &(HistList[i]) <<std::endl;
	}
    for (auto histptr: HistPtrList3) {
        std::cout<<"Trying to get histo name: "<<histptr->GetName()<<std::endl;
    }


    return 0;
}