| MG Mud User | 88f1247 | 2016-06-24 23:31:02 +0200 | [diff] [blame] | 1 | SYNOPSIS |
| Zesstra | d59c389 | 2019-11-28 20:53:39 +0100 | [diff] [blame] | 2 | int last_bit(string str) |
| MG Mud User | 88f1247 | 2016-06-24 23:31:02 +0200 | [diff] [blame] | 3 | |
| Zesstra | 715ec20 | 2025-07-09 22:18:31 +0200 | [diff] [blame] | 4 | DESCRIPTION |
| 5 | Return the number of the last set bit in bitstring <str>. |
| MG Mud User | 88f1247 | 2016-06-24 23:31:02 +0200 | [diff] [blame] | 6 | |
| Zesstra | 715ec20 | 2025-07-09 22:18:31 +0200 | [diff] [blame] | 7 | Each character contains 6 bits. So you can store a value |
| 8 | between 0 and 63 in one character (2^6=64). Starting character |
| 9 | is the blank " " which has the value 0. The first character in |
| 10 | the string is the one with the lowest bits (0-5). |
| MG Mud User | 88f1247 | 2016-06-24 23:31:02 +0200 | [diff] [blame] | 11 | |
| Zesstra | 715ec20 | 2025-07-09 22:18:31 +0200 | [diff] [blame] | 12 | EXAMPLES |
| MG Mud User | 88f1247 | 2016-06-24 23:31:02 +0200 | [diff] [blame] | 13 | string s; |
| MG Mud User | 88f1247 | 2016-06-24 23:31:02 +0200 | [diff] [blame] | 14 | |
| Zesstra | 715ec20 | 2025-07-09 22:18:31 +0200 | [diff] [blame] | 15 | s = set_bit("", 4); s = set_bit(s, 2); |
| 16 | |
| 17 | last_bit(s) --> returns 4 |
| 18 | |
| 19 | SEE ALSO |
| MG Mud User | 88f1247 | 2016-06-24 23:31:02 +0200 | [diff] [blame] | 20 | set_bit(E), clear_bit(E), next_bit(E), test_bit(E), count_bits(E), |
| 21 | and_bits(E), or_bits(E), xor_bits(E), invert_bits(E), copy_bits(E) |