arb/acb_poly/majorant.c

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/*=============================================================================
This file is part of ARB.
ARB is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
ARB is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with ARB; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2015 Fredrik Johansson
******************************************************************************/
#include "acb_poly.h"
void
_acb_poly_majorant(arb_ptr res, acb_srcptr vec, long len, long prec)
{
long i;
for (i = 0; i < len; i++)
{
acb_get_abs_ubound_arf(arb_midref(res + i), vec + i, prec);
mag_zero(arb_radref(res + i));
}
}
void
acb_poly_majorant(arb_poly_t res, const acb_poly_t poly, long prec)
{
arb_poly_fit_length(res, poly->length);
_acb_poly_majorant(res->coeffs, poly->coeffs, poly->length, prec);
_arb_poly_set_length(res, poly->length);
}