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	diff --git a/t/check_highfive.cc b/t/check_highfive.cc
	index b58a79b..9de22b2 100644
	--- a/t/check_highfive.cc
	+++ b/t/check_highfive.cc
	@@ -1,39 +1,41 @@
	/**
	* \authors The HEJ collaboration (see AUTHORS for details)
	* \date 2019-2023
	* \copyright GPLv2 or later
	*/
	#include <cstdlib>
	#include <iostream>

	#include <highfive/H5File.hpp>

	#include "HEJ/exceptions.hh"

	using namespace HighFive;

	int main(int argn, char** argv) {
	constexpr double EP = 1e-3;

	if(argn != 3){
	std::cerr << "Usage: check_highfive hdf5_file XS_test_value\n";
	return EXIT_FAILURE;
	}
	const double xstest = std::stod(argv[2]);
	File file(argv[1], File::ReadOnly);
	auto dataset = file.getDataSet("procInfo/xSection");
	std::vector<double> result;
	// hdf data in form
	// { 0, 1, 2, 3,...}
	// {fkl, uno, qqbar, non-resummable,...}
	- dataset.select({0}).read(result);
	+ const std::vector<size_t> fkl_xs_idx{0};
	+ dataset.select(fkl_xs_idx).read(result);
	double xs = result[0];
	- dataset.select({3}).read(result);
	+ const std::vector<size_t> nonresum_xs_idx{3};
	+ dataset.select(nonresum_xs_idx).read(result);
	xs += result[0];
	if(std::abs(xs-xstest) > EP*xs){
	std::cerr << "Total XS deviates substantially from ref value: "
	<< xs << " vs " << xstest << "\n";
	return EXIT_FAILURE;
	}
	return EXIT_SUCCESS;
	}