pqc/external/flint-2.4.3/fq/ctx_init.c

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2014-05-18 22:03:37 +00:00
/*=============================================================================
This file is part of FLINT.
FLINT 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.
FLINT 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 FLINT; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
=============================================================================*/
/******************************************************************************
Copyright (C) 2013 Mike Hansen
******************************************************************************/
#include <stdio.h>
#include <string.h>
#include "fq.h"
#include "fq_poly.h"
void
fq_ctx_init(fq_ctx_t ctx, const fmpz_t p, slong d, const char *var)
{
flint_rand_t state;
fmpz_mod_poly_t poly;
if (_fq_ctx_init_conway(ctx, p, d, var))
{
return;
}
flint_randinit(state);
fmpz_mod_poly_init2(poly, p, d + 1);
fmpz_mod_poly_randtest_sparse_irreducible(poly, state, d + 1);
fq_ctx_init_modulus(ctx, poly, var);
fmpz_mod_poly_clear(poly);
flint_randclear(state);
}