Progress: finished primitive types, vecs, movesematics. progress structs

\

@@ -0,0 +1,49 @@
+#[derive(Debug)]
+struct Order {
+    name: String,
+    year: u32,
+    made_by_phone: bool,
+    made_by_mobile: bool,
+    made_by_email: bool,
+    item_number: u32,
+    count: u32,
+}
+
+fn create_order_template() -> Order {
+    Order {
+        name: String::from("Bob"),
+        year: 2019,
+        made_by_phone: false,
+        made_by_mobile: false,
+        made_by_email: true,
+        item_number: 123,
+        count: 0,
+    }
+}
+
+fn main() {
+    // You can optionally experiment here.
+}
+
+#[cfg(test)]
+mod tests {
+    use super::*;
+
+    #[test]
+    fn your_order() {
+        let order_template = create_order_template();
+
+        // TODO: Create your own order using the update syntax and template above!
+        // let your_order =
+
+        let your_order = ;
+        
+        assert_eq!(your_order.name, "Hacker in Rust");
+        assert_eq!(your_order.year, order_template.year);
+        assert_eq!(your_order.made_by_phone, order_template.made_by_phone);
+        assert_eq!(your_order.made_by_mobile, order_template.made_by_mobile);
+        assert_eq!(your_order.made_by_email, order_template.made_by_email);
+        assert_eq!(your_order.item_number, order_template.item_number);
+        assert_eq!(your_order.count, 1);
+    }
+}

exercises/04_primitive_types/primitive_types2.rs

@@ -17,6 +17,7 @@ fn main() {
     // Try a letter, try a digit (in single quotes), try a special character, try a character
     // from a different language than your own, try an emoji 😉
     // let your_character = '';
+    let your_character = '僕';
 
     if your_character.is_alphabetic() {
         println!("Alphabetical!");

exercises/04_primitive_types/primitive_types3.rs

@@ -2,6 +2,14 @@ fn main() {
     // TODO: Create an array called `a` with at least 100 elements in it.
     // let a = ???
 
+    let a = [
+        1, 2, 3, 4, 5, 6, 7, 1, 231, 234, 11, 4512, 51, 5, 12, 51, 25, 12, 45, 134, 12, 412, 45,
+        12, 512, 512, 5, 12, 512, 4, 124, 12, 5, 125, 123, 3412, 45, 123, 5123, 5, 12345, 123, 412,
+        56, 1236, 234, 6345, 6534, 6, 547, 456, 754, 6, 345, 34, 534, 6, 235, 123, 4523, 4523, 5,
+        235, 235, 2, 532, 523, 23, 124, 21, 2, 3, 51235, 664, 3466, 345,312,312,421,412,45,1245,123,423,523,56,234,5234,5234,5,346,345,6745,7456,7456,7,456,7456,7,4, 2, 6, 23, 12, 4512, 512,
+        5, 512, 5, 125, 125, 125, 12, 56, 75, 7456, 87,
+    ];
+
     if a.len() >= 100 {
         println!("Wow, that's a big array!");
     } else {

exercises/04_primitive_types/primitive_types4.rs

@@ -11,6 +11,7 @@ mod tests {
         // TODO: Get a slice called `nice_slice` out of the array `a` so that the test passes.
         // let nice_slice = ???
 
+        let nice_slice = &a[1..4];
         assert_eq!([2, 3, 4], nice_slice);
     }
 }

exercises/04_primitive_types/primitive_types5.rs

@@ -4,5 +4,7 @@ fn main() {
     // TODO: Destructure the `cat` tuple in one statement so that the println works.
     // let /* your pattern here */ = cat;
 
+    let (name, age) = cat;
+
     println!("{name} is {age} years old");
 }

exercises/04_primitive_types/primitive_types6.rs

@@ -4,6 +4,7 @@ fn main() {
 
 #[cfg(test)]
 mod tests {
+
     #[test]
     fn indexing_tuple() {
         let numbers = (1, 2, 3);
@@ -11,6 +12,7 @@ mod tests {
         // TODO: Use a tuple index to access the second element of `numbers`
         // and assign it to a variable called `second`.
         // let second = ???;
+        let second = numbers.1;
 
         assert_eq!(second, 2, "This is not the 2nd number in the tuple!");
     }

exercises/05_vecs/vecs1.rs

@@ -1,6 +1,8 @@
 fn elems_to_vec(a: i32, b: i32, c: i32) -> Vec<i32> {
     // TODO: Return a vector containing the elements a, b and c (in this order).
     // Use the "vec!" macro.
+    let vector: Vec<i32> = vec![a, b, c];
+    vector
 }
 
 fn main() {

exercises/05_vecs/vecs2.rs

@@ -4,6 +4,8 @@ fn vec_loop(input: &[i32]) -> Vec<i32> {
     for element in input {
         // TODO: Multiply each element in the `input` slice by 2 and push it to
         // the `output` vector.
+
+        output.push(element * 2);
     }
 
     output

exercises/06_move_semantics/move_semantics1.rs

@@ -1,6 +1,6 @@
 // TODO: Fix the compiler error in this function.
 fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
-    let vec = vec;
+    let mut vec = vec;
 
     vec.push(88);
 

exercises/06_move_semantics/move_semantics2.rs

@@ -20,7 +20,7 @@ mod tests {
     fn move_semantics2() {
         let vec0 = vec![22, 44, 66];
 
-        let vec1 = fill_vec(vec0);
+        let vec1 = fill_vec(vec0.clone());
 
         assert_eq!(vec0, [22, 44, 66]);
         assert_eq!(vec1, [22, 44, 66, 88]);

exercises/06_move_semantics/move_semantics3.rs

@@ -1,5 +1,5 @@
 // TODO: Fix the compiler error in the function without adding any new line.
-fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
+fn fill_vec(mut vec: Vec<i32>) -> Vec<i32> {
     vec.push(88);
 
     vec

exercises/06_move_semantics/move_semantics4.rs

@@ -10,8 +10,8 @@ mod tests {
     fn move_semantics4() {
         let mut x = Vec::new();
         let y = &mut x;
-        let z = &mut x;
         y.push(42);
+        let z = &mut x;
         z.push(13);
         assert_eq!(x, [42, 13]);
     }

exercises/06_move_semantics/move_semantics5.rs

@@ -4,12 +4,12 @@
 // removing references (the character `&`).
 
 // Shouldn't take ownership
-fn get_char(data: String) -> char {
+fn get_char(data: &String) -> char {
     data.chars().last().unwrap()
 }
 
 // Should take ownership
-fn string_uppercase(mut data: &String) {
+fn string_uppercase(mut data: String) {
     data = data.to_uppercase();
 
     println!("{data}");
@@ -18,7 +18,7 @@ fn string_uppercase(mut data: &String) {
 fn main() {
     let data = "Rust is great!".to_string();
 
-    get_char(data);
+    get_char(&data);
 
-    string_uppercase(&data);
+    string_uppercase(data);
 }

exercises/07_structs/structs1.rs

@@ -1,9 +1,12 @@
 struct ColorRegularStruct {
     // TODO: Add the fields that the test `regular_structs` expects.
     // What types should the fields have? What are the minimum and maximum values for RGB colors?
+    red: u8,
+    green: u8,
+    blue: u8,
 }
 
-struct ColorTupleStruct(/* TODO: Add the fields that the test `tuple_structs` expects */);
+struct ColorTupleStruct(u8, u8, u8);
 
 #[derive(Debug)]
 struct UnitStruct;
@@ -20,7 +23,11 @@ mod tests {
     fn regular_structs() {
         // TODO: Instantiate a regular struct.
         // let green =
-
+        let green = ColorRegularStruct {
+            red: 0,
+            green: 255,
+            blue: 0,
+        };
         assert_eq!(green.red, 0);
         assert_eq!(green.green, 255);
         assert_eq!(green.blue, 0);
@@ -30,7 +37,7 @@ mod tests {
     fn tuple_structs() {
         // TODO: Instantiate a tuple struct.
         // let green =
-
+        let green = ColorTupleStruct(0, 255, 0);
         assert_eq!(green.0, 0);
         assert_eq!(green.1, 255);
         assert_eq!(green.2, 0);
@@ -39,7 +46,7 @@ mod tests {
     #[test]
     fn unit_structs() {
         // TODO: Instantiate a unit struct.
-        // let unit_struct =
+        let unit_struct = UnitStruct;
         let message = format!("{unit_struct:?}s are fun!");
 
         assert_eq!(message, "UnitStructs are fun!");

exercises/07_structs/structs2.rs

@@ -36,6 +36,12 @@ mod tests {
         // TODO: Create your own order using the update syntax and template above!
         // let your_order =
 
+        let your_order = Order {
+            name: "Hacker in Rust".to_string(),
+            count: 1,
+            ..order_template
+        };
+
         assert_eq!(your_order.name, "Hacker in Rust");
         assert_eq!(your_order.year, order_template.year);
         assert_eq!(your_order.made_by_phone, order_template.made_by_phone);