public/subjects/tuples

tuples

Instructions

• Define a tuple structure to represent a Student.

• Each student is identified by an id number of type i32, his/her name and his/her last name of type string.

• Then define three functions to return the id, first name and last name.

Notions

• Defining a struct

• The Tuple Type

• Tuples

• Tuple Structs without Named Fields

• Adding Useful Functionality with Derived Traits

• Chapter 7

Dependencies

meval = "0.2"

Expected Functions

pub fn id(student: &Student) -> i32 {
}

pub fn first_name(student: &Student) -> String {
}

pub fn last_name(student: &Student) -> String {
}

Usage

Here is a program to test your functions

use tuples::*;

fn main() {
	let student = Student(20, "Pedro".to_string(), "Domingos".to_string());
	println!("Student: {:?}", student);
	println!("Student first name: {}", first_name(&student));
	println!("Student last name: {}", last_name(&student));
	println!("Student Id: {}", id(&student));
}

And its output:

$ cargo run
Student: Student(20, "Pedro", "Domingos")
Student first name: Pedro
Student last name: Domingos
Student Id: 20
$