forked from root/public
Augusto
4 years ago
4 changed files with 134 additions and 0 deletions
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# This file is automatically @generated by Cargo. |
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# It is not intended for manual editing. |
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[[package]] |
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name = "lalgebra_scalar" |
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version = "0.1.0" |
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[[package]] |
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name = "lalgebra_scalar_test" |
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version = "0.1.0" |
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dependencies = [ |
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"lalgebra_scalar", |
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] |
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[package] |
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name = "lalgebra_scalar_test" |
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version = "0.1.0" |
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authors = ["Augusto <aug.ornelas@gmail.com>"] |
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edition = "2018" |
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# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html |
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[dependencies] |
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lalgebra_scalar = { path = "../../../../rust-piscine-solutions/lalgebra_scalar"} |
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// # Instructions
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// A scalar type must implement the operations
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// Addition, Subtraction, Multiplication and Division (you might
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// also have to use more restrictions). For this use a trait
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// inheritance (supertraits)
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// Another condition for a number to be a scalar is to have a zero
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// (neutral element in the addition) and a one (neutral element in the
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// multiplication). Therefore the Scalar trait will require 2
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// functions zero() and one()
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// After finishing implement the Scalar trait for u32, u64, i32, i64,
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// f32, f64
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use lalgebra_scalar::Scalar; |
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#[allow(dead_code)] |
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fn main() { |
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println!("{:?}", f64::zero()); |
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println!("{:?}", i32::zero()); |
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} |
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#[test] |
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fn scalar_u32() { |
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let a: u32 = u32::zero(); |
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assert_eq!(a, 0 as u32); |
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let b = u32::one(); |
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assert_eq!(b, 1 as u32); |
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} |
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#[test] |
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fn scalar_u64() { |
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let a = u64::zero(); |
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assert_eq!(a, 0 as u64); |
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let b = u64::one(); |
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assert_eq!(b, 1 as u64); |
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} |
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#[test] |
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fn scalar_i32() { |
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let a: i32 = i32::zero(); |
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assert_eq!(a, 0 as i32); |
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let b = i32::one(); |
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assert_eq!(b, 1 as i32); |
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} |
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#[test] |
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fn scalar_i64() { |
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let a: i64 = i64::zero(); |
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assert_eq!(a, 0 as i64); |
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let b = i64::one(); |
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assert_eq!(b, 1 as i64); |
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} |
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#[test] |
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fn scalar_f32() { |
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let zero = f32::zero(); |
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assert_eq!(zero, 0.0); |
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let one = f32::one(); |
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assert_eq!(one, 1.0); |
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} |
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#[test] |
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fn scalar_f64() { |
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let zero = f64::zero(); |
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assert_eq!(zero, 0.0); |
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let one = f64::one(); |
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assert_eq!(one, 1.0); |
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} |
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## lalgebra_scalar |
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### Instructions |
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A scalar type must implement the operations Addition, Subtraction, Multiplication and Division (you might also have to use more restrictions). For this use a trait inheritance (supertraits) |
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Another condition for a number to be a scalar is to have a zero (neutral element in the addition) and a one (neutral element in the multiplication). Therefore the Scalar trait will require 2 functions zero() and one() |
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After finishing implement the Scalar trait for u32, u64, i32, i64, f32, f64 |
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### Expected Function |
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```rust |
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pub trait Scalar: _ { |
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type Item; |
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fn zero() -> Self::Item; |
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fn one() -> Self::Item; |
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} |
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``` |
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### Usage |
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Here is a program to test your function. |
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```rust |
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fn main() { |
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println!("{:?}", f64::zero()); |
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println!("{:?}", i32::zero()); |
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} |
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``` |
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And its output |
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```console |
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student@ubuntu:~/[[ROOT]]/test$ cargo run |
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0.0 |
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0 |
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student@ubuntu:~/[[ROOT]]/test$ |
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``` |
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