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, k = 0;
    int start = 0;

    while (str[i] != '\0') {
        if (str[i] == ',' || str[i+1] == '\0') {
            int end = (str[i] == ',') ? i : i+1;
            if (end > start) {   // only parse if non-empty
                int value = 0;
                for (int j = start; j < end; j++) {
                    value = value * 10 + (str[j] - '0');
                }
                arr[k++] = (uint8_t)value;
            }
            start = i + 1;
        }
        i++;
    }
    *count = k;
}





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