| 598 | } |
| 599 | |
| 600 | bool is_all_zeros(const BYTE *buf, size_t len) |
| 601 | { |
| 602 | |
| 603 | if (len <= sizeof(uint64_t)) { |
| 604 | const BYTE zeros[sizeof(uint64_t)] = { 0 }; |
| 605 | return !memcmp(buf, zeros, len); |
| 606 | } |
| 607 | |
| 608 | TESTZERO(uint64_t); |
| 609 | |
| 610 | TESTZERO(uint32_t); |
| 611 | |
| 612 | TESTZERO(uint16_t); |
| 613 | |
| 614 | return test_zero_bytes<uint8_t>(buf, len); |
| 615 | } |
| 616 | |
| 617 | |
| 618 |