Question

How to declare an integer variable in Rust

Answer 1

fn main() {
    let number1: i32 = 5345; // 32-bit signed integer
    let number2: u32 = 26789; // 32-bit unsigned integer
    let number3 = 38;
    let mut number4 = 154;

    print_type(&number1); 
    print_type(&number2); 
    print_type(&number3); 
    print_type(&number4); 
}
 
fn print_type<T>(_: &T) {
    println!("{}", std::any::type_name::<T>())
}

 
 
/*
run:
 
i32
u32
i32
i32
 
*/

 

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