Convert Binary String to Integer Without strtol function or Libraries

Code

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

uint16_t binary_to_uint(const char *str) {
    // Your logic here
    uint16_t result =0; 
    for (int i=0; str[i]!='\0'; i++) {
        result <<=1; 
        if (str[i]=='1') {
            result |=1; 
        }
    }
    return result; 
}

int main() {
    char bin[20];
    scanf("%s", bin);

    printf("%u", binary_to_uint(bin));
    return 0;
}

Solving Approach