public/subjects/scalar

Scalar

Instructions

Create the following functions, which each receives two parameters:

• sum, which returns the sum between two values from 0 to 255
• diff, which returns the difference between two values from -32768 to 32767
• pro, which returns the product of the multiplication between two values from -128 to 127
• quo, which returns the quotient of the division between two values (32bit and you have to figure out the second part)
• rem, which returns the remainder of the division between two values (32bit and you have to figure out the second part)

You must complete the Expected functions parameters data type accordingly (Replace the Xs)!

Notions

• https://doc.rust-lang.org/book/ch03-02-data-types.html

Expected functions (Incomplete, you must precise the Data Types)

pub fn sum(a: X , b: X) -> X {
	
}

pub fn diff(a: X, b: X) -> X {

}

pub fn pro(a: X, b: X) -> X {

}

pub fn quo(a: X, b: X) -> X {

}

pub fn rem(a: X, b: X) -> X {

}

Usage (do not forget to comment the ERROR test if you want to use all the tests):

use scalar::sum;
use scalar::diff;
use scalar::pro;
use scalar::quo;
use scalar::rem;

fn main() {
    // sum
    println!("sum : {}", sum(234, 2));
    println!("sum : {}", sum(1, 255)); // 'ERROR: attempt to add with overflow'
    // diff
    println!("diff : {}", diff(234, 2));
    println!("diff : {}", diff(-32768, 32766)); // 'ERROR: attempt to subtract with overflow'
    // product
    println!("pro : {}", pro(23, 2));
    println!("pro : {}", pro(-128, 2)); // 'ERROR: attempt to multiply with overflow'
    // quotient
    println!("quo : {}", quo(22.0, 2.0));
    println!("quo : {}", quo(-128.23, 2.0));
    // remainder
    println!("rem : {}", rem(22.0, 2.0));
    println!("rem : {}", rem(-128.23, 2.0));
}