60 lines
1.8 KiB
C
60 lines
1.8 KiB
C
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/*=============================================================================
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This file is part of FLINT.
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FLINT 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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FLINT 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 FLINT; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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=============================================================================*/
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/******************************************************************************
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Copyright (C) 2010,2011 Fredrik Johansson
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******************************************************************************/
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#include <stdio.h>
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#include <stdlib.h>
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#include "flint.h"
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#include "ulong_extras.h"
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#include "nmod_vec.h"
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#include "nmod_mat.h"
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int
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nmod_mat_solve_vec(mp_ptr x, const nmod_mat_t A, mp_srcptr b)
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{
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nmod_mat_t X, B;
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int result;
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slong i, m;
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m = A->r;
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if (m == 0)
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return 1;
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/* This is a bit of a hack. There should be a function to create
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a window into a vector */
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nmod_mat_window_init(X, A, 0, 0, m, 1);
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nmod_mat_window_init(B, A, 0, 0, m, 1);
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for (i = 0; i < m; i++) X->rows[i] = x + i;
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for (i = 0; i < m; i++) B->rows[i] = (mp_ptr) (b + i);
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result = nmod_mat_solve(X, A, B);
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nmod_mat_window_clear(X);
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nmod_mat_window_clear(B);
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return result;
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}
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