Convert Celsius to Farenheit in Rust

Hello, Today I decided to make a program that converts celsius to farenheit instead using Rust! If you want to see the python version. Here is how I do it.

I create a input using a library
create a function that calculates the formula of the conversion
loop the question/input until they enter the correct input in this case you cannot type a String or f64 you only have to type in a i32 or else it will give you a warning and loop.

Here is my code:


use std::io::{self, Write};

fn main() {
    let temp = get_temp_in_celsius_input("Enter the temperature in Celsius: ");
    println!("Temperature in Celsius: {}°C", temp);
    println!("Temperature in Fahrenheit: {}°F", c_to_f(temp));
}


fn c_to_f(celsius: i32) -> f64 {
    (celsius as f64) * 1.8 + 32.0
}

fn get_temp_in_celsius_input(prompt: &str) -> i32 {
    loop {
        // Print without a newline, so it stays in the buffer
        print!("{}", prompt);
        // Force the buffer to be written to the console
        io::stdout().flush().expect("Failed to flush stdout");
        
        let mut input = String::new();
        io::stdin().read_line(&mut input).expect("FAILED TO READ LINE!");

        let trimmed_input = input.trim(); // Remove leading/trailing whitespace and newline
    
        match trimmed_input.parse::<i32>() {
            Ok(good_input) => { return good_input; },
            Err(error) => println!("error: {}", error)
        }
    }
}

Btw here is my code on Github.

Byeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee :333333