#include <string>
#include <iostream>

void read_tree()
{
	TFile *pFile = new TFile("tree.root", "read");
	TTree *pTree = pFile->Get("tree");

	std::string *pName = 0;

	pTree->SetBranchAddress("name", &pName);

	for(Int_t i = 0; i < pTree->GetEntries(); i++)
	{
		pTree->GetEntry(i);

		std::cout << "name: " << (*pName) << std::endl;
	}
}