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https://github.com/vale981/arb
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6bf072eb59
This will allow us to not loose the julia session on error. See also https://github.com/wbhart/flint2/pull/243
57 lines
1.4 KiB
C
57 lines
1.4 KiB
C
/*
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Copyright (C) 2016 Arb authors
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This file is part of Arb.
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Arb is free software: you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License (LGPL) as published
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by the Free Software Foundation; either version 2.1 of the License, or
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(at your option) any later version. See <http://www.gnu.org/licenses/>.
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*/
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#include "bool_mat.h"
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void
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bool_mat_mul(bool_mat_t C, const bool_mat_t A, const bool_mat_t B)
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{
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slong ar, ac, br, bc, i, j, k;
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ar = bool_mat_nrows(A);
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ac = bool_mat_ncols(A);
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br = bool_mat_nrows(B);
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bc = bool_mat_ncols(B);
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if (ac != br || ar != bool_mat_nrows(C) || bc != bool_mat_ncols(C))
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{
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flint_printf("bool_mat_mul: incompatible dimensions\n");
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flint_abort();
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}
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if (br == 0)
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{
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bool_mat_zero(C);
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return;
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}
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if (A == C || B == C)
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{
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bool_mat_t T;
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bool_mat_init(T, ar, bc);
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bool_mat_mul(T, A, B);
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bool_mat_swap(T, C);
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bool_mat_clear(T);
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return;
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}
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for (i = 0; i < ar; i++)
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{
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for (j = 0; j < bc; j++)
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{
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int any = 0;
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for (k = 0; k < br && !any; k++)
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any |= (bool_mat_get_entry(A, i, k) &
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bool_mat_get_entry(B, k, j));
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bool_mat_set_entry(C, i, j, any);
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}
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}
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}
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