| Andrew Scull | b4b6d4a | 2019-01-02 15:54:55 +0000 | [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 | int 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 | } | ||||