| b.liu | e958203 | 2025-04-17 19:18:16 +0800 | [diff] [blame^] | 1 | // SPDX-License-Identifier: GPL-2.0 |
| 2 | /* | ||||
| 3 | * Count the digits of @val including a possible sign. | ||||
| 4 | * | ||||
| 5 | * (Typed on and submitted from hpa's mobile phone.) | ||||
| 6 | */ | ||||
| 7 | int num_digits(int val) | ||||
| 8 | { | ||||
| 9 | long long m = 10; | ||||
| 10 | int d = 1; | ||||
| 11 | |||||
| 12 | if (val < 0) { | ||||
| 13 | d++; | ||||
| 14 | val = -val; | ||||
| 15 | } | ||||
| 16 | |||||
| 17 | while (val >= m) { | ||||
| 18 | m *= 10; | ||||
| 19 | d++; | ||||
| 20 | } | ||||
| 21 | return d; | ||||
| 22 | } | ||||