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28 lines
676 B
C
28 lines
676 B
C
/*
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Copyright (C) 2018 Fredrik Johansson
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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 "arb_mat.h"
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int
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arb_mat_is_zero(const arb_mat_t A)
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{
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slong i, j, n, m;
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n = arb_mat_nrows(A);
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m = arb_mat_ncols(A);
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for (i = 0; i < n; i++)
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for (j = 0; j < m; j++)
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if (!arb_is_zero(arb_mat_entry(A, i, j)))
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return 0;
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return 1;
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}
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