Convert String to Integer

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

int custom_atoi(const char *str) {
    // Your logic here
    int count = 0, number = 0, sign = 1;
    while(str[count] != '\0'){
        if(str[count]>= '0' && str[count]<= '9')
            number = number * 10 + str[count] - '0';
        else if(str[count] == '-')
            sign = -1;
        else if(str[count] == '+')
            sign = 1;
        else
            break;
        count++;
    }
    return number*sign;
}

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++;
    }

    printf("%d", custom_atoi(str));
    return 0;
}