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/**************************************************************************
* *
* Regina - A Normal Surface Theory Calculator *
* Computational Engine *
* *
* Copyright (c) 1999-2025, Ben Burton *
* For further details contact Ben Burton (bab@debian.org). *
* *
* 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 2 of the *
* License, or (at your option) any later version. *
* *
* As an exception, when this program is distributed through (i) the *
* App Store by Apple Inc.; (ii) the Mac App Store by Apple Inc.; or *
* (iii) Google Play by Google Inc., then that store may impose any *
* digital rights management, device limits and/or redistribution *
* restrictions that are required by its terms of service. *
* *
* 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 <https://www.gnu.org/licenses/>. *
* *
**************************************************************************/
/*! \file triangulation/forward.h
* \brief Provides forward declarations of Regina's triangulation-related
* classes.
*
* It is better to include this file rather than manually declare classes
* that you plan to use, for several reasons:
*
* - this header declares all template specialisations, so the compiler
* knows not to use generic implementations when these are not approrpiate;
*
* - this header declares templated type alias (e.g., Simplex<dim>,
* Vertex<dim>, etc.) in one central location, which is needed for
* compilers that will not accept multiple declarations of the same
* type alias (as seen for example in some versions of gcc).
*/
#ifndef __REGINA_FORWARD_H
#ifndef __DOXYGEN
#define __REGINA_FORWARD_H
#endif
namespace regina {
template <int> class BoundaryComponent;
template <int> class Component;
template <> class Component<2>;
template <> class Component<3>;
template <> class Component<4>;
template <int> class Example;
template <> class Example<2>;
template <> class Example<3>;
template <> class Example<4>;
template <int, int> class Face;
template <int dim> class Face<dim, dim>;
template <> class Face<2, 2>;
template <> class Face<3, 3>;
template <> class Face<3, 2>; // test shape, linking surface
template <> class Face<3, 1>; // linking surface
template <> class Face<3, 0>; // build links, linking surface, output type
template <> class Face<4, 4>;
template <> class Face<4, 3>; // linking surface
template <> class Face<4, 2>; // linking surface
template <> class Face<4, 1>; // build links, linking surface
template <> class Face<4, 0>; // build links, linking surface, output ideal/etc.
template <int dim> using Vertex = Face<dim, 0>;
template <int dim> using Edge = Face<dim, 1>;
template <int dim> using Triangle = Face<dim, 2>;
template <int dim> using Tetrahedron = Face<dim, 3>;
template <int dim> using Pentachoron = Face<dim, 4>;
template <int dim> using Simplex = Face<dim, dim>;
template <int, int> class FaceEmbedding;
template <int dim> using VertexEmbedding = FaceEmbedding<dim, 0>;
template <int dim> using EdgeEmbedding = FaceEmbedding<dim, 1>;
template <int dim> using TriangleEmbedding = FaceEmbedding<dim, 2>;
template <int dim> using TetrahedronEmbedding = FaceEmbedding<dim, 3>;
template <int dim> using PentachoronEmbedding = FaceEmbedding<dim, 4>;
template <int> class FacetPairing;
template <> class FacetPairing<3>;
template <int> class Isomorphism;
template <int> class Triangulation;
template <> class Triangulation<2>;
template <> class Triangulation<3>;
template <> class Triangulation<4>;
} // namespace regina
#endif
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