zephyr/lib/os/dec.c

34 lines
532 B
C

/*
* Copyright (c) 2019 Oticon A/S
*
* SPDX-License-Identifier: Apache-2.0
*/
#include <sys/util.h>
uint8_t u8_to_dec(char *buf, uint8_t buflen, uint8_t value)
{
uint8_t divisor = 100;
uint8_t num_digits = 0;
uint8_t digit;
while (buflen > 0 && divisor > 0) {
digit = value / divisor;
if (digit != 0 || divisor == 1 || num_digits != 0) {
*buf = (char)digit + '0';
buf++;
buflen--;
num_digits++;
}
value -= digit * divisor;
divisor /= 10;
}
if (buflen) {
*buf = '\0';
}
return num_digits;
}