Convert a String to Float

Code

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

float custom_atof(const char *str) {
    // Your logic here
    float numerator = 0.0f;
    float denominator = 1.0f;
    bool neg = false;
    bool dot = false;
    while (*str != '\0') {
        if (*str == '+') {str++; continue;}
        if (*str == '-') {neg=true;str++;continue;}
        if (*str == '.') {dot=true;str++;continue;}
        numerator *= 10;
        numerator += *str-'0';
        if (dot) denominator*=10;
        str++;
    }
    return neg ? -1*(numerator/denominator) : numerator/denominator;
}

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++;
    }

    float value = custom_atof(str);
    printf("%.2f", value);
    return 0;
}

Solving Approach