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/*
Copyright (C) 2012 Lina Kulakova
Copyright (C) 2013 Martin Lee
Copyright (C) 2013 Mike Hansen
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/>.
*/
#ifdef T
#include "templates.h"
#include "math.h"
int
TEMPLATE(T, poly_is_irreducible_ddf) (const TEMPLATE(T, poly_t) f,
const TEMPLATE(T, ctx_t) ctx)
{
slong i, n;
slong *degs;
TEMPLATE(T, poly_factor_t) dist_deg;
n = TEMPLATE(T, poly_degree) (f, ctx);
if (n < 2)
return 1;
if (!TEMPLATE(T, poly_is_squarefree) (f, ctx))
return 0;
degs = (slong *) flint_malloc(n * sizeof(slong));
TEMPLATE(T, poly_factor_init) (dist_deg, ctx);
TEMPLATE(T, poly_factor_distinct_deg) (dist_deg, f, °s, ctx);
for (i = 0; i < dist_deg->num; i++)
{
if (degs[i] == n)
{
flint_free(degs);
TEMPLATE(T, poly_factor_clear) (dist_deg, ctx);
return 1;
}
if (degs[i] > 0)
{
flint_free(degs);
TEMPLATE(T, poly_factor_clear) (dist_deg, ctx);
return 0;
}
}
flint_free(degs);
TEMPLATE(T, poly_factor_clear) (dist_deg, ctx);
return 1;
}
#endif