check_hepmc.cc
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check_hepmc.cc
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	/**
	* \authors The HEJ collaboration (see AUTHORS for details)
	* \date 2019
	* \copyright GPLv2 or later
	*/
	#include <iostream>
	#include <stdexcept>

	#include "HepMC/ReaderAscii.h"

	static constexpr double ep = 1e-3;

	int main(int argn, char** argv) {
	if(argn != 2){
	std::cerr << "Usage: check_hepmc hepmc_file\n";
	return EXIT_FAILURE;
	}

	HepMC::ReaderAscii input{argv[1]};
	if(input.failed()) throw std::runtime_error{"failed to open HepMC file"};
	while(true){
	HepMC::GenEvent ev{};
	if ( !input.read_event(ev) \|\| ev.event_number() == 0 ) break;
	if(input.failed()) throw std::runtime_error{"failed to read HepMC event"};
	}
	}