xtools.h

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#pragma once

#include "xerror.h"
#include "xunits.h"
#include <fstream>
#include <gsl/gsl_math.h>
#include <stdexcept>
#include <vector>

namespace nmx {

struct Tools {
    inline static auto get_range(double xmin, double xmax, double dx) {
        std::vector<double> v;
        double x = xmin;
        while (x <= xmax) {
            v.push_back(x);
            x += dx;
        }
        return v;
    }

    auto open_file(const std::string &fname) {
        std::ofstream fout{ fname };
        // wurde die Datei zum Schreiben geöffnet?
        if (!fout) {
            throw std::ios_base::failure{ fname };
        }
        return fout;
    }

    auto split(const std::string &s, char delim) {
        std::vector<std::string> tokens;
        std::stringstream sstream{ s };
        std::string token;
        while (std::getline(sstream, token, delim)) {
            tokens.push_back(token);
        }
        return tokens;
    }

    auto split(const std::string &s, const std::string &delim) {
        size_t beg, pos = 0;
        std::vector<std::string> tokens;
        while ((beg = s.find_first_not_of(delim, pos)) != std::string::npos) {
            pos = s.find_first_of(delim, beg + 1);
            tokens.push_back(s.substr(beg, pos - beg));
        }
        return tokens;
    }
};

} // namespace nmx