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