96 lines
3.1 KiB
C
96 lines
3.1 KiB
C
/*
|
|
|
|
Copyright 2009, 2011 William Hart. All rights reserved.
|
|
|
|
Redistribution and use in source and binary forms, with or without modification, are
|
|
permitted provided that the following conditions are met:
|
|
|
|
1. Redistributions of source code must retain the above copyright notice, this list of
|
|
conditions and the following disclaimer.
|
|
|
|
2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
of conditions and the following disclaimer in the documentation and/or other materials
|
|
provided with the distribution.
|
|
|
|
THIS SOFTWARE IS PROVIDED BY William Hart ``AS IS'' AND ANY EXPRESS OR IMPLIED
|
|
WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
|
|
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL William Hart OR
|
|
CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
|
|
CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
|
|
SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON
|
|
ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
|
|
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
|
|
ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
The views and conclusions contained in the software and documentation are those of the
|
|
authors and should not be interpreted as representing official policies, either expressed
|
|
or implied, of William Hart.
|
|
|
|
*/
|
|
|
|
#include <stdio.h>
|
|
#include <stdlib.h>
|
|
#include <gmp.h>
|
|
#include "flint.h"
|
|
#include "ulong_extras.h"
|
|
#include "fft.h"
|
|
|
|
int
|
|
main(void)
|
|
{
|
|
int i;
|
|
mp_size_t j;
|
|
|
|
FLINT_TEST_INIT(state);
|
|
|
|
flint_printf("split/combine_bits....");
|
|
fflush(stdout);
|
|
|
|
|
|
_flint_rand_init_gmp(state);
|
|
|
|
for (i = 0; i < 10000; i++)
|
|
{
|
|
mp_size_t total_limbs = n_randint(state, 1000) + 1;
|
|
mp_limb_t * in = flint_malloc(total_limbs*sizeof(mp_limb_t));
|
|
mp_limb_t * out = flint_calloc(total_limbs, sizeof(mp_limb_t));
|
|
|
|
mp_bitcnt_t bits = n_randint(state, 200) + 1;
|
|
mp_size_t limbs = (2*bits - 1)/FLINT_BITS + 1;
|
|
slong length = (total_limbs*FLINT_BITS - 1)/bits + 1;
|
|
|
|
mp_limb_t ** poly;
|
|
poly = flint_malloc(length*sizeof(mp_limb_t *));
|
|
for (j = 0; j < length; j++)
|
|
poly[j] = flint_malloc((limbs + 1)*sizeof(mp_limb_t));
|
|
|
|
flint_mpn_urandomb(in, state->gmp_state, total_limbs*FLINT_BITS);
|
|
|
|
fft_split_bits(poly, in, total_limbs, bits, limbs);
|
|
fft_combine_bits(out, poly, length, bits, limbs, total_limbs);
|
|
|
|
for (j = 0; j < total_limbs; j++)
|
|
{
|
|
if (in[j] != out[j])
|
|
{
|
|
flint_printf("FAIL:\n");
|
|
flint_printf("Error in limb %wd, %wu != %wu\n", j, in[j], out[j]);
|
|
abort();
|
|
}
|
|
}
|
|
|
|
flint_free(in);
|
|
flint_free(out);
|
|
|
|
for (j = 0; j < length; j++)
|
|
flint_free(poly[j]);
|
|
|
|
flint_free(poly);
|
|
}
|
|
|
|
FLINT_TEST_CLEANUP(state);
|
|
|
|
flint_printf("PASS\n");
|
|
return 0;
|
|
}
|