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/*
Copyright (C) 2016 Arb authors
This file is part of FLINT.
FLINT is free software: you can redistribute it and/or modify it under
the terms of the GNU Lesser General Public License (LGPL) as published
by the Free Software Foundation; either version 3 of the License, or
(at your option) any later version. See <https://www.gnu.org/licenses/>.
*/
#include "bool_mat.h"
void
bool_mat_transpose(bool_mat_t B, const bool_mat_t A)
{
slong i, j;
if (bool_mat_nrows(B) != bool_mat_ncols(A) ||
bool_mat_ncols(B) != bool_mat_nrows(A))
{
flint_throw(FLINT_ERROR, "bool_mat_transpose: Incompatible dimensions.\n");
}
if (bool_mat_is_empty(A))
return;
if (A == B) /* In-place, guaranteed to be square */
{
int tmp;
for (i = 0; i < bool_mat_nrows(B) - 1; i++)
{
for (j = i + 1; j < bool_mat_ncols(B); j++)
{
tmp = bool_mat_get_entry(B, i, j);
bool_mat_set_entry(B, i, j, bool_mat_get_entry(B, j, i));
bool_mat_set_entry(B, j, i, tmp);
}
}
}
else /* Not aliased; general case */
{
for (i = 0; i < bool_mat_nrows(B); i++)
for (j = 0; j < bool_mat_ncols(B); j++)
bool_mat_set_entry(B, i, j, bool_mat_get_entry(A, j, i));
}
}