pqc/external/flint-2.4.3/qadic/test/t-pow.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) 2012 Sebastian Pancratz
******************************************************************************/
#include <stdio.h>
#include <stdlib.h>
#include "qadic.h"
#include "ulong_extras.h"
#include "long_extras.h"
int
main(void)
{
int i, result;
FLINT_TEST_INIT(state);
flint_printf("pow... ");
fflush(stdout);
/* Check aliasing: a = a^e */
for (i = 0; i < 1000; i++)
{
fmpz_t p;
slong d, N;
qadic_ctx_t ctx;
qadic_t a, b;
fmpz_t e;
fmpz_init_set_ui(p, n_randprime(state, 2 + n_randint(state, 3), 1));
d = n_randint(state, 10) + 1;
N = z_randint(state, 50) + 1;
qadic_ctx_init_conway(ctx, p, d, FLINT_MAX(0, N-10), FLINT_MAX(0, N+10), "a", PADIC_SERIES);
qadic_init2(a, N);
qadic_init2(b, N);
fmpz_init(e);
qadic_randtest(a, state, ctx);
fmpz_randtest_unsigned(e, state, 6);
qadic_pow(b, a, e, ctx);
qadic_pow(a, a, e, ctx);
result = (qadic_equal(a, b));
if (!result)
{
flint_printf("FAIL (alias):\n\n");
flint_printf("a = "), qadic_print_pretty(a, ctx), flint_printf("\n");
flint_printf("b = "), qadic_print_pretty(b, ctx), flint_printf("\n");
abort();
}
qadic_clear(a);
qadic_clear(b);
fmpz_clear(e);
fmpz_clear(p);
qadic_ctx_clear(ctx);
}
/* Compare with multiplication, for integral values */
for (i = 0; i < 1000; i++)
{
fmpz_t p;
slong d, N;
qadic_ctx_t ctx;
qadic_t a, b, c;
fmpz_t e, f;
fmpz_init_set_ui(p, n_randprime(state, 2 + n_randint(state, 3), 1));
d = n_randint(state, 10) + 1;
N = n_randint(state, 50) + 1;
qadic_ctx_init_conway(ctx, p, d, FLINT_MAX(0, N-10), FLINT_MAX(0, N+10), "a", PADIC_SERIES);
qadic_init2(a, N);
qadic_init2(b, N);
qadic_init2(c, N);
fmpz_init(f);
fmpz_init(e);
qadic_randtest_int(a, state, ctx);
fmpz_randtest_unsigned(e, state, 6);
qadic_pow(b, a, e, ctx);
qadic_one(c);
for (fmpz_one(f); fmpz_cmp(f, e) <= 0; fmpz_add_ui(f, f, 1))
{
qadic_mul(c, c, a, ctx);
}
result = (qadic_equal(b, c));
if (!result)
{
flint_printf("FAIL (cmp with mul):\n\n");
flint_printf("a = "), qadic_print_pretty(a, ctx), flint_printf("\n");
flint_printf("b = "), qadic_print_pretty(b, ctx), flint_printf("\n");
flint_printf("c = "), qadic_print_pretty(b, ctx), flint_printf("\n");
flint_printf("e = "), fmpz_print(e), flint_printf("\n");
abort();
}
qadic_clear(a);
qadic_clear(b);
qadic_clear(c);
fmpz_clear(e);
fmpz_clear(f);
fmpz_clear(p);
qadic_ctx_clear(ctx);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return EXIT_SUCCESS;
}