main.cc
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	/* created by Marti Bosch and Marc Schwaerzel*/
	/* -------------------------------------------------------------------------- */
	#include <cstdlib>
	#include <cstring>

	#include <fstream>
	#include <iostream>
	#include <sstream>

	#include "compute_arithmetic.hh"
	#include "compute_pi.hh"
	#include "print_series.hh"
	#include "series.hh"
	#include "write_series.hh"

	using namespace std;
	/* -------------------------------------------------------------------------- */

	int main(int argc, char **argv) {

	if (argc != 5) {
	cout << "Arguments: frequency, maxiter, series_type (arithmetic, pi), "
	"dump_type (print, write)"
	<< endl;
	return EXIT_FAILURE;
	}

	std::stringstream sstr;
	for (int i = 1; i < argc; ++i)
	sstr << argv[i] << " ";

	int frequency;
	int maxiter;
	string series_type;
	string dump_type;

	sstr >> frequency;
	sstr >> maxiter;
	sstr >> series_type;
	sstr >> dump_type;

	Series *series;

	if (series_type == "arithmetic")
	series = new ComputeArithmetic();
	else if (series_type == "pi")
	series = new ComputePi();
	else {
	std::cout << "input error" << std::endl;
	return EXIT_FAILURE;
	}

	std::ofstream of("output.txt");
	if (dump_type == "print") {
	PrintSeries printseries(*series, maxiter, frequency);
	printseries.dump();
	} else if (dump_type == "write") {
	WriteSeries writeseries(*series, maxiter, frequency);
	writeseries.dump(of);
	}

	delete series;
	}