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/* This file is part of the Gudhi Library. The Gudhi library
* (Geometric Understanding in Higher Dimensions) is a generic C++
* library for computational topology.
*
* Author(s): Clément Maria
*
* Copyright (C) 2014 INRIA Sophia Antipolis-Méditerranée (France)
*
* 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
* (at your option) 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/>.
*/
/** \brief Concept describing the requirements for a class to represent
* a field of coefficients to compute persistent homology.
*/
struct CoefficientField {
/** \brief Type of element of the field.
*
* Must be Assignable. */
typedef unspecified Element;
/** Default constructible. */
CoefficientField();
void init(Element charac);
void init(Element charac_min, Element charac_max);
/** Return the characteristic of the field. */
Element characteristic();
/** Return the element 1 of the field. */
Element multiplicative_identity();
/** Return the element 0 of the field. */
Element additive_identity();
/** Assign: x <- x + y */
void plus_equal(Element x, Element y);
/** */
//... inverse()
};
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