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// Copyright (c) 2012-2013 The Cryptonote developers
// Distributed under the MIT/X11 software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
#include <cstddef>
#include <cstdint>
#include <fstream>
#include <iostream>
#include <vector>
#include "cryptonote_config.h"
#include "cryptonote_core/difficulty.h"
using namespace std;
#define DEFAULT_TEST_DIFFICULTY_TARGET 120
int main(int argc, char *argv[]) {
if (argc != 2) {
cerr << "Wrong arguments" << endl;
return 1;
}
vector<uint64_t> timestamps, cumulative_difficulties;
fstream data(argv[1], fstream::in);
data.exceptions(fstream::badbit);
data.clear(data.rdstate());
uint64_t timestamp, difficulty, cumulative_difficulty = 0;
size_t n = 0;
while (data >> timestamp >> difficulty) {
size_t begin, end;
if (n < DIFFICULTY_WINDOW + DIFFICULTY_LAG) {
begin = 0;
end = min(n, (size_t) DIFFICULTY_WINDOW);
} else {
end = n - DIFFICULTY_LAG;
begin = end - DIFFICULTY_WINDOW;
}
uint64_t res = cryptonote::next_difficulty(
vector<uint64_t>(timestamps.begin() + begin, timestamps.begin() + end),
vector<uint64_t>(cumulative_difficulties.begin() + begin, cumulative_difficulties.begin() + end), DEFAULT_TEST_DIFFICULTY_TARGET);
if (res != difficulty) {
cerr << "Wrong difficulty for block " << n << endl
<< "Expected: " << difficulty << endl
<< "Found: " << res << endl;
return 1;
}
timestamps.push_back(timestamp);
cumulative_difficulties.push_back(cumulative_difficulty += difficulty);
++n;
}
if (!data.eof()) {
data.clear(fstream::badbit);
}
return 0;
}
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