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/*
Copyright (C) 2012, 2024 Fredrik Johansson
Copyright (C) 2015 Anubhav Srivastava
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 "fmpz.h"
#include "fmpz_mat.h"
void
fmpz_mat_sqr(fmpz_mat_t B, const fmpz_mat_t A)
{
slong n = A->r, ab;
if (B == A)
{
fmpz_mat_t t;
fmpz_mat_init(t, n, n);
fmpz_mat_sqr(t, A);
fmpz_mat_swap_entrywise(B, t);
fmpz_mat_clear(t);
return;
}
if (n <= 3)
{
fmpz_mat_sqr_bodrato(B, A);
return;
}
ab = fmpz_mat_max_bits(A);
ab = FLINT_ABS(ab);
if (n == 4 && ab >= 1024)
fmpz_mat_sqr_bodrato(B, A);
else
fmpz_mat_mul(B, A, A);
}