/*-
 * Public Domain 2014-2018 MongoDB, Inc.
 * Public Domain 2008-2014 WiredTiger, Inc.
 *
 * This is free and unencumbered software released into the public domain.
 *
 * Anyone is free to copy, modify, publish, use, compile, sell, or
 * distribute this software, either in source code form or as a compiled
 * binary, for any purpose, commercial or non-commercial, and by any
 * means.
 *
 * In jurisdictions that recognize copyright laws, the author or authors
 * of this software dedicate any and all copyright interest in the
 * software to the public domain. We make this dedication for the benefit
 * of the public at large and to the detriment of our heirs and
 * successors. We intend this dedication to be an overt act of
 * relinquishment in perpetuity of all present and future rights to this
 * software under copyright law.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY CLAIM, DAMAGES OR
 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

#include "test_util.h"

int
main(void)
{
	uint64_t ncalls, r, r2, s;
	uint8_t *p;
	uint8_t buf[WT_INTPACK64_MAXSIZE + 8];	/* -Werror=array-bounds */
	const uint8_t *cp;
	size_t used_len;
	int i;

	memset(buf, 0xff, sizeof(buf));	/* -Werror=maybe-uninitialized */

	/*
	 * Required on some systems to pull in parts of the library
	 * for which we have data references.
	 */
	testutil_check(__wt_library_init());

	for (ncalls = 0, i = 0; i < 10000000; i++) {
		for (s = 0; s < 50; s += 5) {
			++ncalls;
			r = 1ULL << s;

#if 1
			p = buf;
			testutil_check(__wt_vpack_uint(&p, sizeof(buf), r));
			used_len = (size_t)(p - buf);
			testutil_assert(used_len <= WT_INTPACK64_MAXSIZE);
			cp = buf;
			testutil_check(
			    __wt_vunpack_uint(&cp, sizeof(buf), &r2));
#else
			/*
			 * Note: use memmove for comparison because GCC does
			 * aggressive optimization of memcpy and it's difficult
			 * to measure anything.
			 */
			p = buf;
			memmove(p, &r, sizeof(r));
			cp = buf;
			memmove(&r2, cp, sizeof(r2));
#endif
			testutil_assert(r == r2);
		}
	}

	printf("Number of calls: %" PRIu64 "\n", ncalls);

	return (0);
}
