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/*
Copyright (C) 2023 Jean Kieffer
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 "acb_theta.h"
void
acb_theta_jet_tuples(slong * tups, slong ord, slong g)
{
slong k, j, l, nb_rec, ind;
slong * rec;
if (g == 1)
{
for (k = 0; k <= ord; k++)
{
tups[k] = k;
}
return;
}
/* Generate tuples in dimension g - 1 */
nb_rec = acb_theta_jet_nb(ord, g - 1);
rec = flint_malloc((g - 1) * nb_rec * sizeof(slong));
acb_theta_jet_tuples(rec, ord, g - 1);
for (k = 0; k <= ord; k++)
{
/* Construct tuples of total order k from rec */
ind = acb_theta_jet_nb(k - 1, g);
for (j = 0; j < acb_theta_jet_nb(k, g - 1); j++)
{
tups[(ind + j) * g] = k - acb_theta_jet_total_order(rec + j * (g - 1), g - 1);
for (l = 0; l < g - 1; l++)
{
tups[(ind + j) * g + l + 1] = rec[j * (g - 1) + l];
}
}
}
flint_free(rec);
}