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Commit | Line | Data |
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b2441318 | 1 | // SPDX-License-Identifier: GPL-2.0 |
a17bce4d BP |
2 | /* |
3 | * Count the digits of @val including a possible sign. | |
4 | * | |
5 | * (Typed on and submitted from hpa's mobile phone.) | |
6 | */ | |
646e29a1 BP |
7 | int num_digits(int val) |
8 | { | |
a17bce4d BP |
9 | int m = 10; |
10 | int d = 1; | |
646e29a1 | 11 | |
a17bce4d BP |
12 | if (val < 0) { |
13 | d++; | |
14 | val = -val; | |
646e29a1 BP |
15 | } |
16 | ||
a17bce4d BP |
17 | while (val >= m) { |
18 | m *= 10; | |
19 | d++; | |
20 | } | |
21 | return d; | |
646e29a1 | 22 | } |