Parse Comma-Separated Integers into an Array

Code

#include <stdio.h>
#include <stdint.h>

void parse_csv_to_array(const char *str, uint8_t *arr, uint8_t *count) {
    uint8_t num = 0; 
    int i = 0; 
    int ind = 0; 
    int multiplier = 1; 
    *count = 0; 
    int start = 0; 

    while (1) {
        if (str[i] == ',' || str[i] == '\0') {
            num = 0;
            multiplier = 1;

            for (int x = i - 1; x >= start; x--) {
                if (str[x] >= '0' && str[x] <= '9') {
                    num += (str[x] - '0') * multiplier;
                    multiplier *= 10;
                }
            }

            arr[ind++] = num;
            (*count)++;

            start = i + 1; // move start past the comma

            if (str[i] == '\0') {
                break;
            }
        }

        i++;
    }
}
int main() {
    char str[101];
    fgets(str, sizeof(str), stdin);

    // Remove newline
    uint8_t i = 0;
    while (str[i]) {
        if (str[i] == '\n') {
            str[i] = '\0';
            break;
        }
        i++;
    }

    uint8_t arr[20];
    uint8_t count = 0;

    parse_csv_to_array(str, arr, &count);

    for (uint8_t i = 0; i < count; i++) {
        printf("%u", arr[i]);
        if(i < count - 1){
            printf(" ");
        }
    }
    return 0;
}

Solving Approach