63 lines
1.9 KiB
C
63 lines
1.9 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 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 <gmp.h>
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#include "flint.h"
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#include "nmod_mat.h"
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#include "nmod_vec.h"
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void
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nmod_mat_transpose(nmod_mat_t B, const nmod_mat_t A)
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{
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mp_limb_t tmp;
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slong i, j;
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if (B->r != A->c || B->c != A->r)
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{
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flint_printf("Exception (nmod_mat_transpose). Incompatible dimensions.\n");
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abort();
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}
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if (A == B) /* In-place, guaranteed to be square */
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{
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for (i = 0; i < A->r - 1; i++)
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for (j = i + 1; j < A->c; j++)
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{
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tmp = A->rows[i][j];
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A->rows[i][j] = A->rows[j][i];
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A->rows[j][i] = tmp;
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}
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}
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else /* Not aliased; general case */
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{
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for (i = 0; i < B->r; i++)
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for (j = 0; j < B->c; j++)
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B->rows[i][j] = A->rows[j][i];
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}
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}
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