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CepGen 1.2.5
Central exclusive processes event generator
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Integrand.h
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1/*
2 * CepGen: a central exclusive processes event generator
3 * Copyright (C) 2013-2022 Laurent Forthomme
4 *
5 * This program is free software: you can redistribute it and/or modify
6 * it under the terms of the GNU General Public License as published by
7 * the Free Software Foundation, either version 3 of the License, or
8 * any later version.
9 *
10 * This program is distributed in the hope that it will be useful,
11 * but WITHOUT ANY WARRANTY; without even the implied warranty of
12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 * GNU General Public License for more details.
14 *
15 * You should have received a copy of the GNU General Public License
16 * along with this program. If not, see <http://www.gnu.org/licenses/>.
17 */
18
19#ifndef CepGen_Integration_Integrand_h
20#define CepGen_Integration_Integrand_h
21
22#include <cstddef> // size_t
23#include <vector>
24
25namespace cepgen {
27 class Integrand {
28 public:
29 Integrand() = default;
30 virtual ~Integrand() {}
31
33 virtual double eval(const std::vector<double>&) = 0;
35 virtual size_t size() const = 0;
37 virtual bool hasProcess() const { return false; }
38 };
39} // namespace cepgen
40
41#endif
An integrand wrapper placeholder.
Definition Integrand.h:27
virtual bool hasProcess() const
Does this integrand also contain a process object?
Definition Integrand.h:37
virtual double eval(const std::vector< double > &)=0
Compute the integrand for a given coordinates set.
Integrand()=default
virtual size_t size() const =0
Phase space dimension.
virtual ~Integrand()
Definition Integrand.h:30
Common namespace for this Monte Carlo generator.