Function DecodeBase58Check

src/base58.cpp:146–161

}

[[nodiscard]] static bool DecodeBase58Check(const char* psz, std::vector<unsigned char>& vchRet, int max_ret_len)
{
    if (!DecodeBase58(psz, vchRet, max_ret_len > std::numeric_limits<int>::max() - 4 ? std::numeric_limits<int>::max() : max_ret_len + 4) ||
        (vchRet.size() < 4)) {
        vchRet.clear();
        return false;
    }
    // re-calculate the checksum, ensure it matches the included 4-byte checksum
    uint256 hash = Hash(std::span{vchRet}.first(vchRet.size() - 4));
    if (memcmp(&hash, &vchRet[vchRet.size() - 4], 4) != 0) {
        vchRet.clear();
        return false;
    }
    vchRet.resize(vchRet.size() - 4);
    return true;
}

bool DecodeBase58Check(const std::string& str, std::vector<unsigned char>& vchRet, int max_ret)
{