pqc/external/flint-2.4.3/fq_zech/test/t-frobenius.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 <stdlib.h>
#include "fq_zech.h"
#include "ulong_extras.h"
#include "long_extras.h"
int
main(void)
{
int j, i, result;
fq_zech_ctx_t ctx;
FLINT_TEST_INIT(state);
flint_printf("frobenius... ");
fflush(stdout);
for (j = 0; j < 10; j++)
{
fq_zech_ctx_randtest(ctx, state);
/* Check aliasing: a = frob(a, e) */
for (i = 0; i < 100; i++)
{
fq_zech_t a, b;
fmpz_t e;
fq_zech_init(a, ctx);
fq_zech_init(b, ctx);
fmpz_init(e);
fq_zech_randtest(a, state, ctx);
fmpz_randtest_unsigned(e, state, 6);
fq_zech_frobenius(b, a, fmpz_get_ui(e), ctx);
fq_zech_frobenius(a, a, fmpz_get_ui(e), ctx);
result = (fq_zech_equal(a, b, ctx));
if (!result)
{
flint_printf("FAIL (alias):\n\n");
flint_printf("a = "), fq_zech_print_pretty(a, ctx), flint_printf("\n");
flint_printf("b = "), fq_zech_print_pretty(b, ctx), flint_printf("\n");
abort();
}
fq_zech_clear(a, ctx);
fq_zech_clear(b, ctx);
fmpz_clear(e);
}
/* Compare with exponentiation, for integral values */
for (i = 0; i < 100; i++)
{
fq_zech_t a, b, c;
fmpz_t e, f;
fq_zech_init(a, ctx);
fq_zech_init(b, ctx);
fq_zech_init(c, ctx);
fmpz_init(f);
fmpz_init(e);
fq_zech_randtest(a, state, ctx);
fmpz_randtest_unsigned(e, state, 6);
fq_zech_frobenius(b, a, fmpz_get_ui(e), ctx);
fmpz_pow_ui(e, fq_zech_ctx_prime(ctx), fmpz_get_ui(e));
fq_zech_pow(c, a, e, ctx);
result = (fq_zech_equal(b, c, ctx));
if (!result)
{
flint_printf("FAIL (cmp with pow):\n\n");
flint_printf("a = "), fq_zech_print_pretty(a, ctx), flint_printf("\n");
flint_printf("b = "), fq_zech_print_pretty(b, ctx), flint_printf("\n");
flint_printf("c = "), fq_zech_print_pretty(b, ctx), flint_printf("\n");
flint_printf("e = "), fmpz_print(e), flint_printf("\n");
abort();
}
fq_zech_clear(a, ctx);
fq_zech_clear(b, ctx);
fq_zech_clear(c, ctx);
fmpz_clear(e);
fmpz_clear(f);
}
fq_zech_ctx_clear(ctx);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return EXIT_SUCCESS;
}