/*
Copyright (C) 2018 Fredrik Johansson
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 "arb.h"
#include "arb_mat.h"
void
arb_mat_swap_rows(arb_mat_t mat, slong * perm, slong r, slong s)
{
if (r != s)
{
if (perm != NULL)
FLINT_SWAP(slong, perm[r], perm[s]);
_arb_vec_swap(arb_mat_entry(mat, r, 0), arb_mat_entry(mat, s, 0), mat->c);
}
}