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// This file is part of Eigen, a lightweight C++ template library
// for linear algebra.
//
// Copyright (C) 2009 Benoit Jacob <jacob.benoit.1@gmail.com>
//
// Eigen is free software; you can redistribute it and/or
// modify it under the terms of the GNU Lesser General Public
// License as published by the Free Software Foundation; either
// version 3 of the License, or (at your option) any later version.
//
// Alternatively, 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.
//
// Eigen 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 Lesser General Public License or the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU Lesser General Public
// License and a copy of the GNU General Public License along with
// Eigen. If not, see <http://www.gnu.org/licenses/>.
// This is a pure C header, no C++ here.
// The functions declared here will be implemented in C++ but
// we don't have to know, because thanks to the extern "C" syntax,
// they will be compiled to C object code.
#ifdef __cplusplus
extern "C"
{
#endif
// just dummy empty structs to give different pointer types,
// instead of using void* which would be type unsafe
struct C_MatrixXd {};
struct C_Map_MatrixXd {};
// the C_MatrixXd class, wraps some of the functionality
// of Eigen::MatrixXd.
struct C_MatrixXd* MatrixXd_new(int rows, int cols);
void MatrixXd_delete (struct C_MatrixXd *m);
double* MatrixXd_data (struct C_MatrixXd *m);
void MatrixXd_set_zero (struct C_MatrixXd *m);
void MatrixXd_resize (struct C_MatrixXd *m, int rows, int cols);
void MatrixXd_copy (struct C_MatrixXd *dst,
const struct C_MatrixXd *src);
void MatrixXd_copy_map (struct C_MatrixXd *dst,
const struct C_Map_MatrixXd *src);
void MatrixXd_set_coeff (struct C_MatrixXd *m,
int i, int j, double coeff);
double MatrixXd_get_coeff (const struct C_MatrixXd *m,
int i, int j);
void MatrixXd_print (const struct C_MatrixXd *m);
void MatrixXd_add (const struct C_MatrixXd *m1,
const struct C_MatrixXd *m2,
struct C_MatrixXd *result);
void MatrixXd_multiply (const struct C_MatrixXd *m1,
const struct C_MatrixXd *m2,
struct C_MatrixXd *result);
// the C_Map_MatrixXd class, wraps some of the functionality
// of Eigen::Map<MatrixXd>
struct C_Map_MatrixXd* Map_MatrixXd_new(double *array, int rows, int cols);
void Map_MatrixXd_delete (struct C_Map_MatrixXd *m);
void Map_MatrixXd_set_zero (struct C_Map_MatrixXd *m);
void Map_MatrixXd_copy (struct C_Map_MatrixXd *dst,
const struct C_Map_MatrixXd *src);
void Map_MatrixXd_copy_matrix(struct C_Map_MatrixXd *dst,
const struct C_MatrixXd *src);
void Map_MatrixXd_set_coeff (struct C_Map_MatrixXd *m,
int i, int j, double coeff);
double Map_MatrixXd_get_coeff (const struct C_Map_MatrixXd *m,
int i, int j);
void Map_MatrixXd_print (const struct C_Map_MatrixXd *m);
void Map_MatrixXd_add (const struct C_Map_MatrixXd *m1,
const struct C_Map_MatrixXd *m2,
struct C_Map_MatrixXd *result);
void Map_MatrixXd_multiply (const struct C_Map_MatrixXd *m1,
const struct C_Map_MatrixXd *m2,
struct C_Map_MatrixXd *result);
#ifdef __cplusplus
} // end extern "C"
#endif
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