#define _HAS_CXX17 1

#include <string>

#include "TROOT.h"
#include "TFile.h"
#include "TTreeReader.h"


void TestSnippet() {

	std::string filename = "C:\\PhD\\LUNA\\16O(p,y)\\Prompt\\Data\\16O\\run277_lf.root";
	TFile* tf = TFile::Open(filename.c_str(), "READ");

	TTree* tree = dynamic_cast<TTree*>(tf->Get("Board 0"));

	ULong64_t timeStamp;
	tree->SetBranchAddress("timeStamp", &timeStamp);

	ULong64_t ts = 0;
	ULong64_t nEntries = tree->GetEntriesFast();
	for (ULong64_t i = 0; i < nEntries; i++) {

		if (tree->GetEntry(i) <= 0) {
			break;
		}

		if (timeStamp > ts) {
			ts = timeStamp;
		}
	}
	delete tf;
	std::cout << ts << "\n";
}

int main() {
	TestSnippet();
}