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/*
Copyright (C) 2020 Daniel Schultz
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 <math.h>
#include "ulong_extras.h"
#include "fmpz.h"
/* TODO: improve the implementation of this function */
ulong n_CRT(ulong A1, ulong M1, ulong A2, ulong M2)
{
ulong R;
fmpz_t r, a1, m1, a2, m2;
fmpz_init(r);
fmpz_init_set_ui(a1, A1);
fmpz_init_set_ui(m1, M1);
fmpz_init_set_ui(a2, A2);
fmpz_init_set_ui(m2, M2);
fmpz_CRT(r, a1, m1, a2, m2, 0);
FLINT_ASSERT(fmpz_abs_fits_ui(r));
R = fmpz_get_ui(r);
fmpz_clear(r);
fmpz_clear(a1);
fmpz_clear(m1);
fmpz_clear(a2);
fmpz_clear(m2);
return R;
}