Abdelrahman Said
96 lines
3.0 KiB
C
96 lines
3.0 KiB
C
/*
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igraph library.
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Copyright (C) 2009-2025 The igraph development team <igraph@igraph.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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#ifndef IGRAPH_MATRIX_H
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#define IGRAPH_MATRIX_H
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#include "igraph_decls.h"
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#include "igraph_error.h"
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#include "igraph_vector.h"
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IGRAPH_BEGIN_C_DECLS
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/* -------------------------------------------------- */
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/* Matrix, very similar to vector */
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/* -------------------------------------------------- */
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#define BASE_IGRAPH_REAL
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#include "igraph_pmt.h"
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#include "igraph_matrix_pmt.h"
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#include "igraph_pmt_off.h"
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#undef BASE_IGRAPH_REAL
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#define BASE_INT
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#include "igraph_pmt.h"
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#include "igraph_matrix_pmt.h"
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#include "igraph_pmt_off.h"
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#undef BASE_INT
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#define BASE_CHAR
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#include "igraph_pmt.h"
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#include "igraph_matrix_pmt.h"
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#include "igraph_pmt_off.h"
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#undef BASE_CHAR
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#define BASE_BOOL
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#include "igraph_pmt.h"
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#include "igraph_matrix_pmt.h"
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#include "igraph_pmt_off.h"
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#undef BASE_BOOL
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#define BASE_COMPLEX
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#include "igraph_pmt.h"
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#include "igraph_matrix_pmt.h"
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#include "igraph_pmt_off.h"
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#undef BASE_COMPLEX
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#define IGRAPH_MATRIX_NULL { IGRAPH_VECTOR_NULL, 0, 0 }
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#define IGRAPH_MATRIX_INIT_FINALLY(m, nr, nc) \
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do { IGRAPH_CHECK(igraph_matrix_init(m, nr, nc)); \
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IGRAPH_FINALLY(igraph_matrix_destroy, m); } while (0)
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#define IGRAPH_MATRIX_INT_INIT_FINALLY(m, nr, nc) \
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do { IGRAPH_CHECK(igraph_matrix_int_init(m, nr, nc)); \
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IGRAPH_FINALLY(igraph_matrix_int_destroy, m); } while (0)
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/**
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* \ingroup matrix
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* \define MATRIX
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* \brief Accessing an element of a matrix.
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*
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* Note that there are no range checks right now.
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* This functionality might be redefined as a proper function later.
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* \param m The matrix object.
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* \param i The index of the row, starting with zero.
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* \param j The index of the column, starting with zero.
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*
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* Time complexity: O(1).
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*/
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#define MATRIX(m,i,j) ((m).data.stor_begin[(m).nrow*(j)+(i)])
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IGRAPH_EXPORT IGRAPH_FUNCATTR_PURE igraph_bool_t igraph_matrix_all_almost_e(const igraph_matrix_t *lhs,
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const igraph_matrix_t *rhs,
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igraph_real_t eps);
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IGRAPH_EXPORT igraph_error_t igraph_matrix_zapsmall(igraph_matrix_t *m, igraph_real_t tol);
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IGRAPH_EXPORT igraph_error_t igraph_matrix_complex_zapsmall(igraph_matrix_complex_t *m, igraph_real_t tol);
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IGRAPH_END_C_DECLS
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#endif
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