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/*
* Copyright 2015 Kevin M Greenan
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice, this
* list of conditions and the following disclaimer in the documentation and/or
* other materials provided with the distribution. THIS SOFTWARE IS PROVIDED BY
* THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED
* WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
* EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
* INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
* LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE
* OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
* ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* vi: set noai tw=79 ts=4 sw=4:
*/
int* create_non_systematic_vand_matrix(int k, int m);
void free_systematic_matrix(int *matrix);
int* make_systematic_matrix(int k, int m);
int is_missing(int *missing_idxs, int index_to_check);
int gaussj_inversion(int *matrix, int *inverse, int n);
int get_non_zero_diagonal(int *matrix, int row, int num_rows, int num_cols);
int rs_galois_div(int x, int y);
int rs_galois_inverse(int x);
int rs_galois_mult(int x, int y);
void init_liberasurecode_rs_vand(int k, int m);
void deinit_liberasurecode_rs_vand();
void print_matrix(int *matrix, int rows, int cols);
void square_matrix_multiply(int *m1, int *m2, int *prod, int n);
int create_decoding_matrix(int *gen_matrix, int *dec_matrix, int *missing_idxs, int k, int m);
int is_identity_matrix(int *matrix, int n);
int liberasurecode_rs_vand_encode(int *generator_matrix, char **data, char **parity, int k, int m, int blocksize);
int liberasurecode_rs_vand_decode(int *generator_matrix, char **data, char **parity, int k, int m, int *missing, int blocksize, int rebuild_parity);
int liberasurecode_rs_vand_reconstruct(int *generator_matrix, char **data, char **parity, int k, int m, int *missing, int destination_idx, int blocksize);
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