| 19 | } |
| 20 | |
| 21 | char *EncodeVarint32(char *dst, uint32_t v) { |
| 22 | // Operate on characters as unsigneds |
| 23 | uint8_t *ptr = reinterpret_cast<uint8_t *>(dst); |
| 24 | static const int B = 128; |
| 25 | if (v < (1 << 7)) { |
| 26 | *(ptr++) = v; |
| 27 | } else if (v < (1 << 14)) { |
| 28 | *(ptr++) = v | B; |
| 29 | *(ptr++) = v >> 7; |
| 30 | } else if (v < (1 << 21)) { |
| 31 | *(ptr++) = v | B; |
| 32 | *(ptr++) = (v >> 7) | B; |
| 33 | *(ptr++) = v >> 14; |
| 34 | } else if (v < (1 << 28)) { |
| 35 | *(ptr++) = v | B; |
| 36 | *(ptr++) = (v >> 7) | B; |
| 37 | *(ptr++) = (v >> 14) | B; |
| 38 | *(ptr++) = v >> 21; |
| 39 | } else { |
| 40 | *(ptr++) = v | B; |
| 41 | *(ptr++) = (v >> 7) | B; |
| 42 | *(ptr++) = (v >> 14) | B; |
| 43 | *(ptr++) = (v >> 21) | B; |
| 44 | *(ptr++) = v >> 28; |
| 45 | } |
| 46 | return reinterpret_cast<char *>(ptr); |
| 47 | } |
| 48 | |
| 49 | void PutVarint32(std::string *dst, uint32_t v) { |
| 50 | char buf[5]; |