| 349 | |
| 350 | private: |
| 351 | static int64_t set_vch(const std::vector<unsigned char>& vch) |
| 352 | { |
| 353 | if (vch.empty()) |
| 354 | return 0; |
| 355 | |
| 356 | int64_t result = 0; |
| 357 | for (size_t i = 0; i != vch.size(); ++i) |
| 358 | result |= static_cast<int64_t>(vch[i]) << 8*i; |
| 359 | |
| 360 | // If the input vector's most significant byte is 0x80, remove it from |
| 361 | // the result's msb and return a negative. |
| 362 | if (vch.back() & 0x80) |
| 363 | return -(static_cast<int64_t>(result & ~(0x80LL << (8 * (vch.size() - 1))))); |
| 364 | |
| 365 | return result; |
| 366 | } |
| 367 | |
| 368 | int64_t m_value; |
| 369 | }; |