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/*-
* Public Domain 2014-2020 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);
}
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