print_type.rs

print_type.rs

use std::any::Any;
use std::fmt::Debug;

fn print_type_name<T: Any + Debug>(value: &T) {
    println!("Type of {:?} is: {}", value, std::any::type_name::<T>());
}

fn main() {
    let i: i32 = 42;
    print_type_name(&i);

    let f: f64 = 3.14159;
    print_type_name(&f);

    let b: bool = true;
    print_type_name(&b);

    let c: char = 'A';
    print_type_name(&c);

    let s: &str = "Hello, world!";
    print_type_name(&s);

    let v: Vec<i32> = vec![1, 2, 3];
    print_type_name(&v);

    let t: (i32, String) = (10, "hello".to_string());
    print_type_name(&t);
}