projects/linux·blob master · refs

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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 */
9int 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}