keyorigin.h

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// Copyright (c) 2019-present The Bitcoin Core developers
// Distributed under the MIT software license, see the accompanying
// file COPYING or http://www.opensource.org/licenses/mit-license.php.
 
#ifndef BITCOIN_SCRIPT_KEYORIGIN_H
#define BITCOIN_SCRIPT_KEYORIGIN_H
 
#include <pubkey.h>
#include <serialize.h>
#include <vector>
 
struct KeyOriginInfo
{
    KeyFingerprint fingerprint; 
    std::vector<uint32_t> path;
 
    friend bool operator==(const KeyOriginInfo& a, const KeyOriginInfo& b) = default;
 
    friend bool operator<(const KeyOriginInfo& a, const KeyOriginInfo& b)
    {
        // Compare the fingerprints lexicographically
        if (a.fingerprint < b.fingerprint) return true;
        else if (a.fingerprint > b.fingerprint) return false;
 
        // Compare the sizes of the paths, shorter is "less than"
        if (a.path.size() < b.path.size()) {
            return true;
        } else if (a.path.size() > b.path.size()) {
            return false;
        }
        // Paths same length, compare them lexicographically
        return a.path < b.path;
    }
 
    SERIALIZE_METHODS(KeyOriginInfo, obj) { READWRITE(obj.fingerprint, obj.path); }
 
    void clear()
    {
        fingerprint.fill(0);
        path.clear();
    }
};
 
#endif // BITCOIN_SCRIPT_KEYORIGIN_H