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) {
    int i = 0;
    *count = 0;
    arr[*count] = 0;

    while (str[i] != '\0') {

        if (str[i] >= '0' && str[i] <= '9') {
            arr[*count] = arr[*count] * 10 + (str[i] - '0');
        }
        else if (str[i] == ',') {
            (*count)++;
            arr[*count] = 0;   // initialize next number
        }

        i++;
    }

    // count total numbers
    (*count)++;
}


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