write_series.cc
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			#include "write_series.hh"
			#include <cmath>
			#include <fstream>

			WriteSeries::WriteSeries(Series &series, unsigned int maxiter,
			unsigned int frequency)
			: DumperSeries(series), maxiter(maxiter), frequency(frequency),
			separator(" ") {}

			void WriteSeries::dump() {
			std::string filepath("series");
			std::string separator = this->separator;
			if (separator == ",")
			filepath += ".csv";
			else if (separator == "\|")
			filepath += ".psv";
			else
			filepath += ".txt";
			std::ofstream f(filepath);
			double analytic_prediction = this->series.getAnalyticPrediction();
			if (~std::isnan(analytic_prediction)) {
			for (int i = 1; i <= this->maxiter; i += this->frequency) {
			double value = this->series.compute(i);
			f << value << separator << analytic_prediction << std::endl;
			}
			}
			}

			void WriteSeries::setSeparator(std::string separator) {
			this->separator = separator;
			}

			WriteSeries::~WriteSeries() = default;

exsp4e/exercice_2/src/write_series.cc029f7486bea8master