Initial commit

src/assignments/assignment01.rs

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+//! Assignment 1: Preparing for Rust Development Environment.
+//!
+//! The primary goal of this assignment is bringing up SSH, VSCode, and all the other necessary tools to develop Rust programs.
+//! Please make sure you're comfortable with developing Rust programs before moving on to the next assignments.
+//!
+//! You should fill out `add()` and `sub()` function bodies in such a way that `/scripts/grade-01.sh` works fine.
+//! See `assignment01_grade.rs` and `/scripts/grade-01.sh` for the test script.
+//!
+//! Hint: https://doc.rust-lang.org/std/primitive.usize.html
+
+/// Adds two unsigned words. If overflow happens, just wrap around.
+pub(crate) fn add(lhs: usize, rhs: usize) -> usize {
+    todo!()
+}
+
+/// Adds two unsigned words. If underflow happens, just wrap around.
+pub(crate) fn sub(lhs: usize, rhs: usize) -> usize {
+    todo!()
+}

src/assignments/assignment01_grade.rs

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+#[cfg(test)]
+mod test {
+    use super::super::assignment01::*;
+
+    #[test]
+    fn add_7_3() {
+        assert_eq!(add(7, 3), 10);
+    }
+
+    #[test]
+    fn add_overflow() {
+        assert_eq!(add(usize::MAX, 1), usize::MIN);
+    }
+
+    #[test]
+    fn sub_7_3() {
+        assert_eq!(sub(7, 3), 4);
+    }
+
+    #[test]
+    fn sub_underflow() {
+        assert_eq!(sub(usize::MIN, 1), usize::MAX);
+    }
+}

src/assignments/mod.rs

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+#![allow(dead_code)]
+#![allow(unused_variables)]
+
+mod assignment01;
+mod assignment01_grade;