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/******************************************************************************
* Copyright (c) Intel Corporation - All rights reserved. *
* This file is part of the LIBXSMM library. *
* *
* For information on the license, see the LICENSE file. *
* Further information: https://github.com/hfp/libxsmm/ *
* SPDX-License-Identifier: BSD-3-Clause *
******************************************************************************/
/* Hans Pabst (Intel Corp.)
******************************************************************************/
#include <libxsmm_source.h>
#if defined(_DEBUG)
# define FPRINTF(STREAM, ...) fprintf(STREAM, __VA_ARGS__)
#else
# define FPRINTF(STREAM, ...)
#endif
#if !defined(ELEM_TYPE)
# define ELEM_TYPE int
#endif
/**
* This test case is NOT an example of how to use LIBXSMM
* since INTERNAL functions are tested which are not part
* of the LIBXSMM API.
*/
int main(void)
{
const unsigned int seed = 1975, size = 2507;
const unsigned int n512 = 512 / (8 * sizeof(ELEM_TYPE));
unsigned int s = LIBXSMM_UP(size, n512), i, h1, h2;
int result = EXIT_SUCCESS;
const ELEM_TYPE* value;
ELEM_TYPE *const data = (ELEM_TYPE*)libxsmm_malloc(sizeof(ELEM_TYPE) * s);
if (NULL == data) s = 0;
for (i = 0; i < s; ++i) data[i] = (ELEM_TYPE)(rand() - ((RAND_MAX) >> 1));
h1 = libxsmm_crc32_u64(seed, data);
h2 = libxsmm_crc32_u32(seed, data);
h2 = libxsmm_crc32_u32(h2, (unsigned int*)data + 1);
if (h1 != h2) {
FPRINTF(stderr, "crc32_u32 or crc32_u64 is wrong\n");
result = EXIT_FAILURE;
}
h1 = libxsmm_crc32(seed, data, sizeof(ELEM_TYPE) * s);
h2 = seed; value = data;
for (i = 0; i < s; i += n512) {
h2 = libxsmm_crc32_u512(h2, value + i);
}
if (h1 != h2) {
FPRINTF(stderr, "(crc32=%u) != (crc32_sw=%u)\n", h1, h2);
result = EXIT_FAILURE;
}
if (seed != libxsmm_hash(NULL/*data*/, 0/*size*/, seed)) {
result = EXIT_FAILURE;
}
if (0 != libxsmm_hash_string(NULL/*string*/)) {
result = EXIT_FAILURE;
}
libxsmm_free(data);
return result;
}
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