mirror of
https://github.com/vale981/arb
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58 lines
1.9 KiB
C
58 lines
1.9 KiB
C
/*=============================================================================
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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
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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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ARB 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) 2015 Tommy Hofmann
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******************************************************************************/
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#include "arb_mat.h"
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void
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arb_mat_transpose(arb_mat_t B, const arb_mat_t A)
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{
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slong i, j;
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if (arb_mat_nrows(B) != arb_mat_ncols(A) || arb_mat_ncols(B) != arb_mat_nrows(A))
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{
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flint_printf("Exception (arb_mat_transpose). Incompatible dimensions.\n");
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abort();
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}
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if (arb_mat_is_empty(A))
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return;
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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 < arb_mat_nrows(A) - 1; i++)
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{
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for (j = i + 1; j < arb_mat_ncols(A); j++)
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{
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arb_swap(arb_mat_entry(A, i, j), arb_mat_entry(A, j, i));
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}
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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 < arb_mat_nrows(B); i++)
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for (j = 0; j < arb_mat_ncols(B); j++)
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arb_set(arb_mat_entry(B, i, j), arb_mat_entry(A, j, i));
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}
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}
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