forked from townforge/townforge
73 lines
2.9 KiB
C++
73 lines
2.9 KiB
C++
// Copyright (c) 2019-2020, The Monero Project
|
|
//
|
|
// All rights reserved.
|
|
//
|
|
// Redistribution and use in source and binary forms, with or without modification, are
|
|
// permitted provided that the following conditions are met:
|
|
//
|
|
// 1. Redistributions of source code must retain the above copyright notice, this list of
|
|
// conditions and the following disclaimer.
|
|
//
|
|
// 2. Redistributions in binary form must reproduce the above copyright notice, this list
|
|
// of conditions and the following disclaimer in the documentation and/or other
|
|
// materials provided with the distribution.
|
|
//
|
|
// 3. Neither the name of the copyright holder nor the names of its contributors may be
|
|
// used to endorse or promote products derived from this software without specific
|
|
// prior written permission.
|
|
//
|
|
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY
|
|
// EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
|
|
// MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
|
|
// THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
|
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
|
|
// PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
|
|
// INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
|
|
// STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
|
|
// THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
|
|
|
#pragma once
|
|
|
|
#include "string_tools.h"
|
|
#include "int-util.h"
|
|
#include "cryptonote_basic/difficulty.h"
|
|
|
|
template<uint64_t hash_target_high, uint64_t hash_target_low, uint64_t difficulty_high, uint64_t difficulty_low>
|
|
class test_check_hash
|
|
{
|
|
public:
|
|
static const size_t loop_count = 100000;
|
|
|
|
bool init()
|
|
{
|
|
cryptonote::difficulty_type hash_target = hash_target_high;
|
|
hash_target = (hash_target << 64) | hash_target_low;
|
|
difficulty = difficulty_high;
|
|
difficulty = (difficulty << 64) | difficulty_low;
|
|
boost::multiprecision::uint256_t hash_value = std::numeric_limits<boost::multiprecision::uint256_t>::max() / hash_target;
|
|
uint64_t val;
|
|
val = (hash_value & 0xffffffffffffffff).convert_to<uint64_t>();
|
|
((uint64_t*)&hash)[0] = SWAP64LE(val);
|
|
hash_value >>= 64;
|
|
val = (hash_value & 0xffffffffffffffff).convert_to<uint64_t>();
|
|
((uint64_t*)&hash)[1] = SWAP64LE(val);
|
|
hash_value >>= 64;
|
|
val = (hash_value & 0xffffffffffffffff).convert_to<uint64_t>();
|
|
((uint64_t*)&hash)[2] = SWAP64LE(val);
|
|
hash_value >>= 64;
|
|
val = (hash_value & 0xffffffffffffffff).convert_to<uint64_t>();
|
|
((uint64_t*)&hash)[3] = SWAP64LE(val);
|
|
return true;
|
|
}
|
|
|
|
bool test()
|
|
{
|
|
cryptonote::check_hash_128(hash, difficulty);
|
|
return true;
|
|
}
|
|
|
|
private:
|
|
crypto::hash hash;
|
|
cryptonote::difficulty_type difficulty;
|
|
};
|