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1 | // SPDX-License-Identifier: GPL-2.0 | |
2 | #include <asm/misc.h> | |
3 | ||
4 | /* | |
5 | * Count the digits of @val including a possible sign. | |
6 | * | |
7 | * (Typed on and submitted from hpa's mobile phone.) | |
8 | */ | |
9 | int num_digits(int val) | |
10 | { | |
11 | long long m = 10; | |
12 | int d = 1; | |
13 | ||
14 | if (val < 0) { | |
15 | d++; | |
16 | val = -val; | |
17 | } | |
18 | ||
19 | while (val >= m) { | |
20 | m *= 10; | |
21 | d++; | |
22 | } | |
23 | return d; | |
24 | } |