pqc/external/flint-2.4.3/fq_poly_templates/test/t-hamming_weight.c
2014-05-24 23:16:06 +02:00

136 lines
3.9 KiB
C

/*=============================================================================
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
Copyright (C) 2012 Andres Goens
Copyright (C) 2013 Mike Hansen
******************************************************************************/
#ifdef T
#include "templates.h"
#include <stdio.h>
#include <stdlib.h>
#include "ulong_extras.h"
#include "long_extras.h"
int
main(void)
{
int i, result;
FLINT_TEST_INIT(state);
flint_printf("hamming_weight... ");
fflush(stdout);
/* Check consistency */
for (i = 0; i < 2000; i++)
{
slong len;
TEMPLATE(T, ctx_t) ctx;
slong w1, w2;
TEMPLATE(T, poly_t) a, b;
len = n_randint(state, 15) + 1;
TEMPLATE(T, ctx_randtest) (ctx, state);
TEMPLATE(T, poly_init) (a, ctx);
TEMPLATE(T, poly_init) (b, ctx);
TEMPLATE(T, poly_randtest) (a, state, len, ctx);
TEMPLATE(T, poly_set) (b, a, ctx);
w1 = TEMPLATE(T, poly_hamming_weight) (a, ctx);
w2 = TEMPLATE(T, poly_hamming_weight) (b, ctx);
result = (w1 == w2);
if (!result)
{
flint_printf("FAIL:\n\n");
flint_printf("a = "), TEMPLATE(T, poly_print_pretty) (a, "X", ctx),
flint_printf("\n");
flint_printf("b = "), TEMPLATE(T, poly_print_pretty) (b, "X", ctx),
flint_printf("\n");
flint_printf("w1 = %wd \n w2 = %wd \n", w1, w2);
abort();
}
TEMPLATE(T, poly_clear) (a, ctx);
TEMPLATE(T, poly_clear) (b, ctx);
TEMPLATE(T, ctx_clear) (ctx);
}
/* Check that wt(a+b) \leq wt(a) + wt(b) */
for (i = 0; i < 2000; i++)
{
slong len;
TEMPLATE(T, ctx_t) ctx;
slong w1, w2, wsum;
TEMPLATE(T, poly_t) a, b, c;
len = n_randint(state, 15) + 1;
TEMPLATE(T, ctx_randtest) (ctx, state);
TEMPLATE(T, poly_init) (a, ctx);
TEMPLATE(T, poly_init) (b, ctx);
TEMPLATE(T, poly_init) (c, ctx);
TEMPLATE(T, poly_randtest) (a, state, len, ctx);
TEMPLATE(T, poly_randtest) (b, state, len, ctx);
TEMPLATE(T, poly_add) (c, a, b, ctx);
w1 = TEMPLATE(T, poly_hamming_weight) (a, ctx);
w2 = TEMPLATE(T, poly_hamming_weight) (b, ctx);
wsum = TEMPLATE(T, poly_hamming_weight) (c, ctx);
result = (wsum <= w1 + w2);
if (!result)
{
flint_printf("FAIL:\n\n");
flint_printf("a = "), TEMPLATE(T, poly_print_pretty) (a, "X", ctx),
flint_printf("\n");
flint_printf("b = "), TEMPLATE(T, poly_print_pretty) (b, "X", ctx),
flint_printf("\n");
flint_printf("w1 = %wd \n w2 = %wd \n wsum = %wd", w1, w2, wsum);
abort();
}
TEMPLATE(T, poly_clear) (a, ctx);
TEMPLATE(T, poly_clear) (b, ctx);
TEMPLATE(T, poly_clear) (c, ctx);
TEMPLATE(T, ctx_clear) (ctx);
}
FLINT_TEST_CLEANUP(state);
flint_printf("PASS\n");
return EXIT_SUCCESS;
}
#endif