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hashcat/deps/xxHash/tests/collisions/sort.cc

60 lines
1.7 KiB
C++

/*
* sort.cc - C++ sort functions
* Copyright (C) 2019-2020 Yann Collet
* GPL v2 License
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License along
* with this program; if not, write to the Free Software Foundation, Inc.,
* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*
* You can contact the author at:
* - xxHash homepage: https://www.xxhash.com
* - xxHash source repository: https://github.com/Cyan4973/xxHash
*/
/*
* C++ sort functions tend to run faster than C ones due to templates allowing
* inline optimizations.
* Also, glibc's qsort() seems to inflate memory usage, resulting in OOM
* crashes on the test server.
*/
#include <algorithm> // std::sort
#define XXH_INLINE_ALL // XXH128_cmp
#include <xxhash.h>
#include "sort.hh"
void sort64(uint64_t* table, size_t size)
{
std::sort(table, table + size);
}
#include <stdlib.h> // qsort
void sort128(XXH128_hash_t* table, size_t size)
{
#if 0
// C++ sort using a custom function object
struct {
bool operator()(XXH128_hash_t a, XXH128_hash_t b) const
{
return XXH128_cmp(&a, &b);
}
} customLess;
std::sort(table, table + size, customLess);
#else
qsort(table, size, sizeof(*table), XXH128_cmp);
#endif
}