Convert String to Integer

Code

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

int custom_atoi(const char *str) {
    // Your logic here
    int num = 0;
    bool neg = false;
    while (*str != '\0') {
        if (*str == '-') {neg = true; str++; continue;}
        if (*str=='+') {str++; continue;}
        if ((*str < '0')|| (*str > '9')) break;
        num *= 10;
        num += *str - '0';
        str++;
    }
    return neg ? -num : num;
}

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;
}

Solving Approach