/*- * Public Domain 2014-2015 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 #include "wt_internal.h" int main() { const uint8_t *cp; uint8_t buf[10], *p; uint64_t ncalls, r, r2, s; int i; ncalls = 0; for (i = 0; i < 10000000; i++) { for (s = 0; s < 50; s += 5) { ++ncalls; r = 1ULL << s; #if 1 p = buf; assert(__wt_vpack_uint(&p, sizeof(buf), r) == 0); cp = buf; assert(__wt_vunpack_uint(&cp, sizeof(buf), &r2) == 0); #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 if (r != r2) { fprintf(stderr, "mismatch!\n"); break; } } } printf("Number of calls: %llu\n", (unsigned long long)ncalls); return (0); }