/*
 * Rust does not really have a default concept of equivalence between structs
 * Instead like java, programmer is required to implement a method
 * 
 * type aliases (like money below) look like structural equivalence, 
 * but are certainly not
 * 
 * ggtowell
 * Nov 2023
 */

type Money = f32;


#[derive(Debug)]
struct SsOne {
    a: i32
}
#[derive(Debug)]
struct SsTwo {
    a: i32
}

type SsThree = SsTwo;


fn main() {
    println!("Hello, world!");
    let cash : Money = 5.0;
    let five : f32 = 5.0;
    println!("{}", cash==five);
    let ss = SsOne{a:5};
    println!("{:?}", ss);
    let st = SsTwo{a:5};
    //println!("{}", ss == st);   // curious that rust-analyzer does not flag this!
    let s3 =  SsThree{a:17}; 
    println!("{:?}", s3);
}