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/*
Copyright (C) 2023 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 "gr_poly.h"
void
_gr_poly_normalise(gr_poly_t poly, gr_ctx_t ctx)
{
slong i, sz;
truth_t eq;
i = poly->length - 1;
sz = ctx->sizeof_elem;
while (i >= 0)
{
eq = gr_is_zero(GR_ENTRY(poly->coeffs, i, sz), ctx);
if (eq == T_TRUE)
{
GR_MUST_SUCCEED(gr_zero(GR_ENTRY(poly->coeffs, i, sz), ctx));
i--;
}
else
{
break;
}
}
poly->length = i + 1;
}