mirror of
https://github.com/vale981/arb
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29 lines
755 B
C
29 lines
755 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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void
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arb_mat_window_init(arb_mat_t window, const arb_mat_t mat,
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slong r1, slong c1, slong r2, slong c2)
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{
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slong i;
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window->entries = NULL;
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window->rows = flint_malloc((r2 - r1) * sizeof(arb_ptr));
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for (i = 0; i < r2 - r1; i++)
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window->rows[i] = mat->rows[r1 + i] + c1;
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window->r = r2 - r1;
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window->c = c2 - c1;
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}
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