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/*
Copyright (C) 2007, David Howden.
Copyright (C) 2010 William Hart
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 "nmod_poly.h"
void
nmod_poly_realloc(nmod_poly_t poly, slong alloc)
{
if (alloc == 0)
{
nmod_poly_clear(poly);
poly->length = 0;
poly->alloc = 0;
poly->coeffs = NULL;
return;
}
poly->coeffs = (nn_ptr) flint_realloc(poly->coeffs, alloc * sizeof(ulong));
poly->alloc = alloc;
/* truncate poly if necessary */
if (poly->length > alloc)
{
poly->length = alloc;
_nmod_poly_normalise(poly);
}
}