arb/fmpz_holonomic/randtest.c
2012-10-18 10:58:32 +02:00

48 lines
1.6 KiB
C

/*=============================================================================
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) 2012 Fredrik Johansson
******************************************************************************/
#include "fmpz_holonomic.h"
void
fmpz_holonomic_randtest(fmpz_holonomic_t op, flint_rand_t state, long r, long d, long b)
{
long i;
r = n_randint(state, r + 1);
d = n_randint(state, d + 1);
b = n_randint(state, b + 1);
fmpz_holonomic_fit_length(op, r + 1);
for (i = 0; i <= r; i++)
fmpz_poly_randtest(op->coeffs + i, state, d + 1, b);
_fmpz_holonomic_set_length(op, r + 1);
fmpz_holonomic_normalise_leading(op);
if (op->length == 0)
fmpz_holonomic_one(op);
}