AnalyticIntegrator.cpp

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/*
 *  CepGen: a central exclusive processes event generator
 *  Copyright (C) 2022-2024  Laurent Forthomme
 *
 *  This program is free software: you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation, either version 3 of the License, or
 *  any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 *  GNU General Public License for more details.
 *
 *  You should have received a copy of the GNU General Public License
 *  along with this program.  If not, see <http://www.gnu.org/licenses/>.
 */
 
#include "CepGen/Integration/AnalyticIntegrator.h"
#include "CepGen/Utils/FunctionsWrappers.h"
 
namespace cepgen {
  AnalyticIntegrator::AnalyticIntegrator(const ParametersList& params)
      : NamedModule(params),
        range_(steer<Limits>("range")),
        func_params_(steer<ParametersList>("params")),
        verbosity_(steer<int>("verbosity")) {}
 
  double AnalyticIntegrator::integrate(const std::function<double(double)>& func, const Limits& lim) const {
    return integrate(utils::Function1D(func), nullptr, lim);
  }
 
  ParametersDescription AnalyticIntegrator::description() {
    auto desc = ParametersDescription();
    desc.add<Limits>("range", Limits{0., 1.}).setDescription("integration range");
    desc.add<ParametersDescription>("params", ParametersDescription())
        .setDescription("parameters for the function to be integrated");
    desc.add<int>("verbosity", 0).setDescription("integrator verbosity");
    return desc;
  }
}  // namespace cepgen