From 40959e21630c658511e431eb80cea8e197886187 Mon Sep 17 00:00:00 2001
From: CaribouJohn <john@heath.mx>
Date: Sun, 26 Jul 2020 16:26:30 +0100
Subject: [PATCH] completed exercises
---
Cargo.lock | 2 +-
exercises/enums/enums1.rs | 12 +++++---
exercises/enums/enums2.rs | 9 +++++-
exercises/enums/enums3.rs | 19 +++++++++++-
exercises/functions/functions1.rs | 5 +++-
exercises/functions/functions2.rs | 3 +-
exercises/functions/functions3.rs | 4 +--
exercises/functions/functions4.rs | 3 +-
exercises/functions/functions5.rs | 3 +-
exercises/if/if1.rs | 6 +++-
exercises/if/if2.rs | 5 ++--
exercises/macros/macros1.rs | 4 +--
exercises/macros/macros2.rs | 3 +-
exercises/macros/macros3.rs | 2 +-
exercises/macros/macros4.rs | 3 +-
exercises/modules/modules1.rs | 3 +-
exercises/modules/modules2.rs | 5 ++--
exercises/move_semantics/move_semantics1.rs | 7 +++--
exercises/move_semantics/move_semantics2.rs | 29 +++++++++++--------
exercises/move_semantics/move_semantics3.rs | 3 +-
exercises/move_semantics/move_semantics4.rs | 6 ++--
exercises/primitive_types/primitive_types1.rs | 3 +-
exercises/primitive_types/primitive_types2.rs | 3 +-
exercises/primitive_types/primitive_types3.rs | 3 +-
exercises/primitive_types/primitive_types4.rs | 3 +-
exercises/primitive_types/primitive_types5.rs | 3 +-
exercises/primitive_types/primitive_types6.rs | 4 +--
exercises/quiz1.rs | 9 +++++-
exercises/quiz2.rs | 21 +++++++-------
exercises/quiz3.rs | 4 +--
exercises/quiz4.rs | 8 +++--
exercises/strings/strings1.rs | 3 +-
exercises/strings/strings2.rs | 3 +-
exercises/structs/structs1.rs | 19 +++++++-----
exercises/structs/structs2.rs | 8 +++--
exercises/structs/structs3.rs | 15 ++++++----
exercises/tests/tests1.rs | 4 +--
exercises/tests/tests2.rs | 3 +-
exercises/tests/tests3.rs | 3 +-
exercises/variables/variables1.rs | 3 +-
exercises/variables/variables2.rs | 3 +-
exercises/variables/variables3.rs | 3 +-
exercises/variables/variables4.rs | 3 +-
exercises/variables/variables5.rs | 3 +-
exercises/variables/variables6.rs | 3 +-
45 files changed, 154 insertions(+), 119 deletions(-)
diff --git a/Cargo.lock b/Cargo.lock
index 52c8ed4..732a4b5 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -592,7 +592,7 @@ dependencies = [
[[package]]
name = "rustlings"
-version = "3.0.0"
+version = "4.0.0"
dependencies = [
"assert_cmd 0.11.1 (registry+https://github.com/rust-lang/crates.io-index)",
"clap 2.33.0 (registry+https://github.com/rust-lang/crates.io-index)",
diff --git a/exercises/enums/enums1.rs b/exercises/enums/enums1.rs
index a2223d3..de1e443 100644
--- a/exercises/enums/enums1.rs
+++ b/exercises/enums/enums1.rs
@@ -1,16 +1,20 @@
// enums1.rs
// Make me compile! Execute `rustlings hint enums1` for hints!
-// I AM NOT DONE
-
#[derive(Debug)]
enum Message {
// TODO: define a few types of messages as used below
+ Quit,
+ Echo(String),
+ Move,
+ ChangeColor {
+ color: String,
+ }
}
fn main() {
println!("{:?}", Message::Quit);
- println!("{:?}", Message::Echo);
+ println!("{:?}", Message::Echo("str".to_string()));
println!("{:?}", Message::Move);
- println!("{:?}", Message::ChangeColor);
+ println!("{:?}", Message::ChangeColor{color:"test".to_string()});
}
diff --git a/exercises/enums/enums2.rs b/exercises/enums/enums2.rs
index 52ccb22..3fda824 100644
--- a/exercises/enums/enums2.rs
+++ b/exercises/enums/enums2.rs
@@ -1,11 +1,18 @@
// enums2.rs
// Make me compile! Execute `rustlings hint enums2` for hints!
-// I AM NOT DONE
#[derive(Debug)]
enum Message {
// TODO: define the different variants used below
+ Move {
+ x:i32,
+ y:i32
+ },
+ Echo(String),
+ ChangeColor(i32,i32,i32),
+ Quit
+
}
impl Message {
diff --git a/exercises/enums/enums3.rs b/exercises/enums/enums3.rs
index 4b0be97..b13e724 100644
--- a/exercises/enums/enums3.rs
+++ b/exercises/enums/enums3.rs
@@ -1,10 +1,13 @@
// enums3.rs
// Address all the TODOs to make the tests pass!
-// I AM NOT DONE
enum Message {
// TODO: implement the message variant types based on their usage below
+ ChangeColor(u8,u8,u8),
+ Move(Point),
+ Echo (String),
+ Quit
}
struct Point {
@@ -37,6 +40,20 @@ impl State {
fn process(&mut self, message: Message) {
// TODO: create a match expression to process the different message variants
+ match message {
+ Message::Echo(test) => {
+ self.echo(test);
+ }
+ Message::ChangeColor(r,g,b) => {
+ self.change_color((r,g,b));
+ }
+ Message::Move(p) => {
+ self.move_position(p);
+ }
+ Message::Quit => {
+ self.quit();
+ }
+ }
}
}
diff --git a/exercises/functions/functions1.rs b/exercises/functions/functions1.rs
index 3112527..44cef48 100644
--- a/exercises/functions/functions1.rs
+++ b/exercises/functions/functions1.rs
@@ -1,7 +1,10 @@
// functions1.rs
// Make me compile! Execute `rustlings hint functions1` for hints :)
-// I AM NOT DONE
+
+fn call_me() -> i8 {
+ return 1;
+}
fn main() {
call_me();
diff --git a/exercises/functions/functions2.rs b/exercises/functions/functions2.rs
index 108ba38..331cfa9 100644
--- a/exercises/functions/functions2.rs
+++ b/exercises/functions/functions2.rs
@@ -1,13 +1,12 @@
// functions2.rs
// Make me compile! Execute `rustlings hint functions2` for hints :)
-// I AM NOT DONE
fn main() {
call_me(3);
}
-fn call_me(num) {
+fn call_me(num:i8) {
for i in 0..num {
println!("Ring! Call number {}", i + 1);
}
diff --git a/exercises/functions/functions3.rs b/exercises/functions/functions3.rs
index e3c1bf7..873a568 100644
--- a/exercises/functions/functions3.rs
+++ b/exercises/functions/functions3.rs
@@ -1,10 +1,10 @@
// functions3.rs
// Make me compile! Execute `rustlings hint functions3` for hints :)
-// I AM NOT DONE
fn main() {
- call_me();
+ let test:i8 = 100;
+ call_me(test.into());
}
fn call_me(num: i32) {
diff --git a/exercises/functions/functions4.rs b/exercises/functions/functions4.rs
index 58637e4..0c3c6c3 100644
--- a/exercises/functions/functions4.rs
+++ b/exercises/functions/functions4.rs
@@ -4,14 +4,13 @@
// This store is having a sale where if the price is an even number, you get
// 10 Rustbucks off, but if it's an odd number, it's 3 Rustbucks off.
-// I AM NOT DONE
fn main() {
let original_price = 51;
println!("Your sale price is {}", sale_price(original_price));
}
-fn sale_price(price: i32) -> {
+fn sale_price(price: i32) -> i32 {
if is_even(price) {
price - 10
} else {
diff --git a/exercises/functions/functions5.rs b/exercises/functions/functions5.rs
index d22aa6c..ee79e79 100644
--- a/exercises/functions/functions5.rs
+++ b/exercises/functions/functions5.rs
@@ -1,7 +1,6 @@
// functions5.rs
// Make me compile! Execute `rustlings hint functions5` for hints :)
-// I AM NOT DONE
fn main() {
let answer = square(3);
@@ -9,5 +8,5 @@ fn main() {
}
fn square(num: i32) -> i32 {
- num * num;
+ num * num
}
diff --git a/exercises/if/if1.rs b/exercises/if/if1.rs
index 9086754..e42417e 100644
--- a/exercises/if/if1.rs
+++ b/exercises/if/if1.rs
@@ -1,6 +1,5 @@
// if1.rs
-// I AM NOT DONE
pub fn bigger(a: i32, b: i32) -> i32 {
// Complete this function to return the bigger number!
@@ -8,6 +7,11 @@ pub fn bigger(a: i32, b: i32) -> i32 {
// - another function call
// - additional variables
// Execute `rustlings hint if1` for hints
+ if( a >= b )
+ {
+ return a;
+ }
+ return b;
}
// Don't mind this for now :)
diff --git a/exercises/if/if2.rs b/exercises/if/if2.rs
index 80effbd..233b5ee 100644
--- a/exercises/if/if2.rs
+++ b/exercises/if/if2.rs
@@ -4,13 +4,14 @@
// Step 2: Get the bar_for_fuzz and default_to_baz tests passing!
// Execute the command `rustlings hint if2` if you want a hint :)
-// I AM NOT DONE
pub fn fizz_if_foo(fizzish: &str) -> &str {
if fizzish == "fizz" {
"foo"
+ } else if(fizzish == "fuzz") {
+ "bar"
} else {
- 1
+ "baz"
}
}
diff --git a/exercises/macros/macros1.rs b/exercises/macros/macros1.rs
index ed0dac8..4058037 100644
--- a/exercises/macros/macros1.rs
+++ b/exercises/macros/macros1.rs
@@ -1,8 +1,8 @@
// macros1.rs
// Make me compile! Execute `rustlings hint macros1` for hints :)
-// I AM NOT DONE
+#[macro_export]
macro_rules! my_macro {
() => {
println!("Check out my macro!");
@@ -10,5 +10,5 @@ macro_rules! my_macro {
}
fn main() {
- my_macro();
+ my_macro!();
}
diff --git a/exercises/macros/macros2.rs b/exercises/macros/macros2.rs
index d0be123..6583dde 100644
--- a/exercises/macros/macros2.rs
+++ b/exercises/macros/macros2.rs
@@ -1,12 +1,11 @@
// macros2.rs
// Make me compile! Execute `rustlings hint macros2` for hints :)
-// I AM NOT DONE
-
fn main() {
my_macro!();
}
+#[macro_export]
macro_rules! my_macro {
() => {
println!("Check out my macro!");
diff --git a/exercises/macros/macros3.rs b/exercises/macros/macros3.rs
index 93a4311..1147edc 100644
--- a/exercises/macros/macros3.rs
+++ b/exercises/macros/macros3.rs
@@ -2,9 +2,9 @@
// Make me compile, without taking the macro out of the module!
// Execute `rustlings hint macros3` for hints :)
-// I AM NOT DONE
mod macros {
+ #[macro_export]
macro_rules! my_macro {
() => {
println!("Check out my macro!");
diff --git a/exercises/macros/macros4.rs b/exercises/macros/macros4.rs
index 3a74807..066048e 100644
--- a/exercises/macros/macros4.rs
+++ b/exercises/macros/macros4.rs
@@ -1,12 +1,11 @@
// macros4.rs
// Make me compile! Execute `rustlings hint macros4` for hints :)
-// I AM NOT DONE
macro_rules! my_macro {
() => {
println!("Check out my macro!");
- }
+ };
($val:expr) => {
println!("Look at this other macro: {}", $val);
}
diff --git a/exercises/modules/modules1.rs b/exercises/modules/modules1.rs
index 812dfee..c76b058 100644
--- a/exercises/modules/modules1.rs
+++ b/exercises/modules/modules1.rs
@@ -1,10 +1,9 @@
// modules1.rs
// Make me compile! Execute `rustlings hint modules1` for hints :)
-// I AM NOT DONE
mod sausage_factory {
- fn make_sausage() {
+ pub fn make_sausage() {
println!("sausage!");
}
}
diff --git a/exercises/modules/modules2.rs b/exercises/modules/modules2.rs
index fde439d..00bb1a2 100644
--- a/exercises/modules/modules2.rs
+++ b/exercises/modules/modules2.rs
@@ -1,11 +1,10 @@
// modules2.rs
// Make me compile! Execute `rustlings hint modules2` for hints :)
-// I AM NOT DONE
mod delicious_snacks {
- use self::fruits::PEAR as fruit;
- use self::veggies::CUCUMBER as veggie;
+ pub use self::fruits::PEAR as fruit;
+ pub use self::veggies::CUCUMBER as veggie;
mod fruits {
pub const PEAR: &'static str = "Pear";
diff --git a/exercises/move_semantics/move_semantics1.rs b/exercises/move_semantics/move_semantics1.rs
index e2f5876..4343986 100644
--- a/exercises/move_semantics/move_semantics1.rs
+++ b/exercises/move_semantics/move_semantics1.rs
@@ -1,12 +1,13 @@
// move_semantics1.rs
// Make me compile! Execute `rustlings hint move_semantics1` for hints :)
-// I AM NOT DONE
fn main() {
- let vec0 = Vec::new();
+ let mut vec0 = Vec::new();
+ vec0.push(99);
- let vec1 = fill_vec(vec0);
+ println!("{} has length {} content `{:?}`", "vec0", vec0.len(), vec0);
+ let mut vec1 = fill_vec(vec0);
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
diff --git a/exercises/move_semantics/move_semantics2.rs b/exercises/move_semantics/move_semantics2.rs
index bd21fbb..76b7319 100644
--- a/exercises/move_semantics/move_semantics2.rs
+++ b/exercises/move_semantics/move_semantics2.rs
@@ -2,27 +2,32 @@
// Make me compile without changing line 13!
// Execute `rustlings hint move_semantics2` for hints :)
-// I AM NOT DONE
fn main() {
- let vec0 = Vec::new();
+// let vec0 = Vec::new();
+// let mut vec1 = fill_vec(vec0.clone());
- let mut vec1 = fill_vec(vec0);
-
- // Do not change the following line!
+// let vec0 = Vec::new();
+ let mut vec0 = Vec::new();
+ vec0.push(99);
+ //let mut vec1 = fill_vec( vec0.clone() );
+// let mut vec1 = fill_vec(&vec0);
+ let mut vec1 = fill_vec(&mut vec0);
+// Do not change the following line!
println!("{} has length {} content `{:?}`", "vec0", vec0.len(), vec0);
- vec1.push(88);
+ vec0.push(88);
- println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
+ println!("{} has length {} content `{:?}`", "vec0", vec0.len(), vec0);
+// println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
}
-fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
- let mut vec = vec;
-
+//fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
+// let mut vec = vec;
+// fn fill_vec(vec: &Vec<i32>) -> Vec<i32> {
+// let mut vec = vec.to_vec();
+fn fill_vec(vec: &mut Vec<i32>) {
vec.push(22);
vec.push(44);
vec.push(66);
-
- vec
}
diff --git a/exercises/move_semantics/move_semantics3.rs b/exercises/move_semantics/move_semantics3.rs
index 43fef74..38ae109 100644
--- a/exercises/move_semantics/move_semantics3.rs
+++ b/exercises/move_semantics/move_semantics3.rs
@@ -3,7 +3,6 @@
// (no lines with multiple semicolons necessary!)
// Execute `rustlings hint move_semantics3` for hints :)
-// I AM NOT DONE
fn main() {
let vec0 = Vec::new();
@@ -17,7 +16,7 @@ fn main() {
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
}
-fn fill_vec(vec: Vec<i32>) -> Vec<i32> {
+fn fill_vec(mut vec: Vec<i32>) -> Vec<i32> {
vec.push(22);
vec.push(44);
vec.push(66);
diff --git a/exercises/move_semantics/move_semantics4.rs b/exercises/move_semantics/move_semantics4.rs
index a1c4a41..04a95b3 100644
--- a/exercises/move_semantics/move_semantics4.rs
+++ b/exercises/move_semantics/move_semantics4.rs
@@ -4,12 +4,10 @@
// freshly created vector from fill_vec to its caller.
// Execute `rustlings hint move_semantics4` for hints!
-// I AM NOT DONE
fn main() {
- let vec0 = Vec::new();
- let mut vec1 = fill_vec(vec0);
+ let mut vec1 = fill_vec();
println!("{} has length {} content `{:?}`", "vec1", vec1.len(), vec1);
@@ -20,7 +18,7 @@ fn main() {
// `fill_vec()` no longer take `vec: Vec<i32>` as argument
fn fill_vec() -> Vec<i32> {
- let mut vec = vec;
+ let mut vec = Vec::new();
vec.push(22);
vec.push(44);
diff --git a/exercises/primitive_types/primitive_types1.rs b/exercises/primitive_types/primitive_types1.rs
index 0912139..46856d8 100644
--- a/exercises/primitive_types/primitive_types1.rs
+++ b/exercises/primitive_types/primitive_types1.rs
@@ -2,7 +2,6 @@
// Fill in the rest of the line that has code missing!
// No hints, there's no tricks, just get used to typing these :)
-// I AM NOT DONE
fn main() {
// Booleans (`bool`)
@@ -12,7 +11,7 @@ fn main() {
println!("Good morning!");
}
- let // Finish the rest of this line like the example! Or make it be false!
+ let is_evening = !is_morning;// Finish the rest of this line like the example! Or make it be false!
if is_evening {
println!("Good evening!");
}
diff --git a/exercises/primitive_types/primitive_types2.rs b/exercises/primitive_types/primitive_types2.rs
index 6576a4d..2e98615 100644
--- a/exercises/primitive_types/primitive_types2.rs
+++ b/exercises/primitive_types/primitive_types2.rs
@@ -2,7 +2,6 @@
// Fill in the rest of the line that has code missing!
// No hints, there's no tricks, just get used to typing these :)
-// I AM NOT DONE
fn main() {
// Characters (`char`)
@@ -16,7 +15,7 @@ fn main() {
println!("Neither alphabetic nor numeric!");
}
- let // Finish this line like the example! What's your favorite character?
+ let your_character = '!';// Finish this line like the example! What's your favorite character?
// Try a letter, try a number, try a special character, try a character
// from a different language than your own, try an emoji!
if your_character.is_alphabetic() {
diff --git a/exercises/primitive_types/primitive_types3.rs b/exercises/primitive_types/primitive_types3.rs
index dfd6351..42a8e1e 100644
--- a/exercises/primitive_types/primitive_types3.rs
+++ b/exercises/primitive_types/primitive_types3.rs
@@ -2,10 +2,9 @@
// Create an array with at least 100 elements in it where the ??? is.
// Execute `rustlings hint primitive_types3` for hints!
-// I AM NOT DONE
fn main() {
- let a = ???
+ let a = [1; 101];
if a.len() >= 100 {
println!("Wow, that's a big array!");
diff --git a/exercises/primitive_types/primitive_types4.rs b/exercises/primitive_types/primitive_types4.rs
index 10b553e..df54dff 100644
--- a/exercises/primitive_types/primitive_types4.rs
+++ b/exercises/primitive_types/primitive_types4.rs
@@ -2,13 +2,12 @@
// Get a slice out of Array a where the ??? is so that the test passes.
// Execute `rustlings hint primitive_types4` for hints!!
-// I AM NOT DONE
#[test]
fn slice_out_of_array() {
let a = [1, 2, 3, 4, 5];
- let nice_slice = ???
+ let nice_slice = &a[1..4];
assert_eq!([2, 3, 4], nice_slice)
}
diff --git a/exercises/primitive_types/primitive_types5.rs b/exercises/primitive_types/primitive_types5.rs
index 680d8d2..7923c4b 100644
--- a/exercises/primitive_types/primitive_types5.rs
+++ b/exercises/primitive_types/primitive_types5.rs
@@ -2,11 +2,10 @@
// Destructure the `cat` tuple so that the println will work.
// Execute `rustlings hint primitive_types5` for hints!
-// I AM NOT DONE
fn main() {
let cat = ("Furry McFurson", 3.5);
- let /* your pattern here */ = cat;
+ let (name,age)= cat;
println!("{} is {} years old.", name, age);
}
diff --git a/exercises/primitive_types/primitive_types6.rs b/exercises/primitive_types/primitive_types6.rs
index 2bc817e..ebe025a 100644
--- a/exercises/primitive_types/primitive_types6.rs
+++ b/exercises/primitive_types/primitive_types6.rs
@@ -3,9 +3,7 @@
// You can put this right into the `println!` where the ??? is.
// Execute `rustlings hint primitive_types6` for hints!
-// I AM NOT DONE
-
fn main() {
let numbers = (1, 2, 3);
- println!("The second number is {}", ???);
+ println!("The second number is {}", numbers.2);
}
diff --git a/exercises/quiz1.rs b/exercises/quiz1.rs
index 5c5c355..abd7abc 100644
--- a/exercises/quiz1.rs
+++ b/exercises/quiz1.rs
@@ -7,11 +7,18 @@
// more than 40 at once, each apple only costs 1! Write a function that calculates
// the price of an order of apples given the order amount. No hints this time!
-// I AM NOT DONE
// Put your function here!
// fn ..... {
+fn calculate_apple_price( weight: i32 ) -> i32 {
+ if( weight < 40 ) {
+ return weight * 2;
+ }
+ return weight ;
+}
+
+
// Don't modify this function!
#[test]
fn verify_test() {
diff --git a/exercises/quiz2.rs b/exercises/quiz2.rs
index 8caeaa9..c6f2b79 100644
--- a/exercises/quiz2.rs
+++ b/exercises/quiz2.rs
@@ -7,7 +7,6 @@
// you think each value is. That is, add either `string_slice` or `string`
// before the parentheses on each line. If you're right, it will compile!
-// I AM NOT DONE
fn string_slice(arg: &str) {
println!("{}", arg);
@@ -17,14 +16,14 @@ fn string(arg: String) {
}
fn main() {
- ("blue");
- ("red".to_string());
- (String::from("hi"));
- ("rust is fun!".to_owned());
- ("nice weather".into());
- (format!("Interpolation {}", "Station"));
- (&String::from("abc")[0..1]);
- (" hello there ".trim());
- ("Happy Monday!".to_string().replace("Mon", "Tues"));
- ("mY sHiFt KeY iS sTiCkY".to_lowercase());
+ string_slice("blue");
+ string("red".to_string());
+ string(String::from("hi"));
+ string("rust is fun!".to_owned());
+ string_slice("nice weather".into());
+ string(format!("Interpolation {}", "Station"));
+ string_slice(&String::from("abc")[0..1]);
+ string_slice(" hello there ".trim());
+ string("Happy Monday!".to_string().replace("Mon", "Tues"));
+ string("mY sHiFt KeY iS sTiCkY".to_lowercase());
}
diff --git a/exercises/quiz3.rs b/exercises/quiz3.rs
index a0cd371..12db9b8 100644
--- a/exercises/quiz3.rs
+++ b/exercises/quiz3.rs
@@ -7,7 +7,6 @@
// we expect to get when we call `times_two` with a negative number.
// No hints, you can do this :)
-// I AM NOT DONE
pub fn times_two(num: i32) -> i32 {
num * 2
@@ -19,11 +18,12 @@ mod tests {
#[test]
fn returns_twice_of_positive_numbers() {
- assert_eq!(times_two(4), ???);
+ assert_eq!(times_two(4), 8);
}
#[test]
fn returns_twice_of_negative_numbers() {
// TODO write an assert for `times_two(-4)`
+ assert_eq!(times_two(-4), -8);
}
}
diff --git a/exercises/quiz4.rs b/exercises/quiz4.rs
index 6c47480..8d472d7 100644
--- a/exercises/quiz4.rs
+++ b/exercises/quiz4.rs
@@ -4,8 +4,12 @@
// - Macros
// Write a macro that passes the quiz! No hints this time, you can do it!
-
-// I AM NOT DONE
+#[macro_export]
+macro_rules! my_macro{
+ ($s:literal) => {
+ format!("Hello {}",$s)
+ };
+}
#[cfg(test)]
mod tests {
diff --git a/exercises/strings/strings1.rs b/exercises/strings/strings1.rs
index 8090244..46cee98 100644
--- a/exercises/strings/strings1.rs
+++ b/exercises/strings/strings1.rs
@@ -2,7 +2,6 @@
// Make me compile without changing the function signature!
// Execute `rustlings hint strings1` for hints ;)
-// I AM NOT DONE
fn main() {
let answer = current_favorite_color();
@@ -10,5 +9,5 @@ fn main() {
}
fn current_favorite_color() -> String {
- "blue"
+ String::from("blue")
}
diff --git a/exercises/strings/strings2.rs b/exercises/strings/strings2.rs
index 5a2ce74..4200f69 100644
--- a/exercises/strings/strings2.rs
+++ b/exercises/strings/strings2.rs
@@ -2,11 +2,10 @@
// Make me compile without changing the function signature!
// Execute `rustlings hint strings2` for hints :)
-// I AM NOT DONE
fn main() {
let word = String::from("green"); // Try not changing this line :)
- if is_a_color_word(word) {
+ if is_a_color_word(&word) {
println!("That is a color word I know!");
} else {
println!("That is not a color word I know.");
diff --git a/exercises/structs/structs1.rs b/exercises/structs/structs1.rs
index 6d0b2f4..fcd55a8 100644
--- a/exercises/structs/structs1.rs
+++ b/exercises/structs/structs1.rs
@@ -1,17 +1,18 @@
// structs1.rs
// Address all the TODOs to make the tests pass!
-// I AM NOT DONE
struct ColorClassicStruct {
- // TODO: Something goes here
+ name: String,
+ hex: String
}
-struct ColorTupleStruct(/* TODO: Something goes here */);
+struct ColorTupleStruct(String,String);
#[derive(Debug)]
struct UnitStruct;
+
#[cfg(test)]
mod tests {
use super::*;
@@ -19,7 +20,10 @@ mod tests {
#[test]
fn classic_c_structs() {
// TODO: Instantiate a classic c struct!
- // let green =
+ let green = ColorClassicStruct {
+ name: String::from("green"),
+ hex: String::from("#00FF00")
+ };
assert_eq!(green.name, "green");
assert_eq!(green.hex, "#00FF00");
@@ -28,7 +32,7 @@ mod tests {
#[test]
fn tuple_structs() {
// TODO: Instantiate a tuple struct!
- // let green =
+ let green = ColorTupleStruct(String::from("green"),String::from("#00FF00"));
assert_eq!(green.0, "green");
assert_eq!(green.1, "#00FF00");
@@ -37,8 +41,9 @@ mod tests {
#[test]
fn unit_structs() {
// TODO: Instantiate a unit struct!
- // let unit_struct =
- let message = format!("{:?}s are fun!", unit_struct);
+ let unit_struct = UnitStruct;
+
+ let message = format!("{:#?}s are fun!", unit_struct);
assert_eq!(message, "UnitStructs are fun!");
}
diff --git a/exercises/structs/structs2.rs b/exercises/structs/structs2.rs
index f9c6427..b3285ea 100644
--- a/exercises/structs/structs2.rs
+++ b/exercises/structs/structs2.rs
@@ -1,7 +1,6 @@
// structs2.rs
// Address all the TODOs to make the tests pass!
-// I AM NOT DONE
#[derive(Debug)]
struct Order {
@@ -34,7 +33,12 @@ mod tests {
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 = Order {
+ name: String::from("Hacker in Rust"),
+ 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);
diff --git a/exercises/structs/structs3.rs b/exercises/structs/structs3.rs
index 5503ce1..3b3b3a7 100644
--- a/exercises/structs/structs3.rs
+++ b/exercises/structs/structs3.rs
@@ -3,8 +3,6 @@
// exercise we have defined the Package struct and we want to test some logic attached to it,
// make the code compile and the tests pass! If you have issues execute `rustlings hint structs3`
-// I AM NOT DONE
-
#[derive(Debug)]
struct Package {
sender_country: String,
@@ -16,17 +14,22 @@ impl Package {
fn new(sender_country: String, recipient_country: String, weight_in_grams: i32) -> Package {
if weight_in_grams <= 0 {
// Something goes here...
+ panic!("Weight cannot be negative!");
} else {
return Package {sender_country, recipient_country, weight_in_grams};
}
}
- fn is_international(&self) -> ??? {
- // Something goes here...
+ fn is_international(&self) -> bool {
+ if self.sender_country != self.recipient_country {
+ return true
+ }
+ false
}
- fn get_fees(&self, cents_per_kg: i32) -> ??? {
+ fn get_fees(&self, cents_per_kg: i32) -> i32 {
// Something goes here... (beware of grams to kg conversion)
+ self.weight_in_grams * cents_per_kg
}
}
@@ -58,7 +61,7 @@ mod tests {
let sender_country = String::from("Spain");
let recipient_country = String::from("Spain");
- let cents_per_kg = ???;
+ let cents_per_kg = 3;
let package = Package::new(sender_country, recipient_country, 1500);
diff --git a/exercises/tests/tests1.rs b/exercises/tests/tests1.rs
index 50586a1..2e981d4 100644
--- a/exercises/tests/tests1.rs
+++ b/exercises/tests/tests1.rs
@@ -6,12 +6,10 @@
// This test has a problem with it -- make the test compile! Make the test
// pass! Make the test fail! Execute `rustlings hint tests1` for hints :)
-// I AM NOT DONE
-
#[cfg(test)]
mod tests {
#[test]
fn you_can_assert() {
- assert!();
+ assert!(1==1);
}
}
diff --git a/exercises/tests/tests2.rs b/exercises/tests/tests2.rs
index 0d981ad..f1d969f 100644
--- a/exercises/tests/tests2.rs
+++ b/exercises/tests/tests2.rs
@@ -2,12 +2,11 @@
// This test has a problem with it -- make the test compile! Make the test
// pass! Make the test fail! Execute `rustlings hint tests2` for hints :)
-// I AM NOT DONE
#[cfg(test)]
mod tests {
#[test]
fn you_can_assert_eq() {
- assert_eq!();
+ assert_eq!(1==1,true);
}
}
diff --git a/exercises/tests/tests3.rs b/exercises/tests/tests3.rs
index 693b8aa..4c72926 100644
--- a/exercises/tests/tests3.rs
+++ b/exercises/tests/tests3.rs
@@ -4,7 +4,6 @@
// we expect to get when we call `is_even(5)`.
// Execute `rustlings hint tests3` for hints :)
-// I AM NOT DONE
pub fn is_even(num: i32) -> bool {
num % 2 == 0
@@ -16,6 +15,6 @@ mod tests {
#[test]
fn is_true_when_even() {
- assert!();
+ assert!(is_even(2));
}
}
diff --git a/exercises/variables/variables1.rs b/exercises/variables/variables1.rs
index 4a3af73..149d5ce 100644
--- a/exercises/variables/variables1.rs
+++ b/exercises/variables/variables1.rs
@@ -6,9 +6,8 @@
// even after you already figured it out. If you got everything working and
// feel ready for the next exercise, remove the `I AM NOT DONE` comment below.
-// I AM NOT DONE
fn main() {
- x = 5;
+ let x = 5;
println!("x has the value {}", x);
}
diff --git a/exercises/variables/variables2.rs b/exercises/variables/variables2.rs
index 7774a8f..9cb5aa1 100644
--- a/exercises/variables/variables2.rs
+++ b/exercises/variables/variables2.rs
@@ -1,10 +1,9 @@
// variables2.rs
// Make me compile! Execute the command `rustlings hint variables2` if you want a hint :)
-// I AM NOT DONE
fn main() {
- let x;
+ let x: i8 = 100;
if x == 10 {
println!("Ten!");
} else {
diff --git a/exercises/variables/variables3.rs b/exercises/variables/variables3.rs
index 30ec48f..3566ef2 100644
--- a/exercises/variables/variables3.rs
+++ b/exercises/variables/variables3.rs
@@ -1,10 +1,9 @@
// variables3.rs
// Make me compile! Execute the command `rustlings hint variables3` if you want a hint :)
-// I AM NOT DONE
fn main() {
- let x = 3;
+ let mut x = 3;
println!("Number {}", x);
x = 5; // don't change this line
println!("Number {}", x);
diff --git a/exercises/variables/variables4.rs b/exercises/variables/variables4.rs
index 77f1e9a..facafd3 100644
--- a/exercises/variables/variables4.rs
+++ b/exercises/variables/variables4.rs
@@ -1,9 +1,8 @@
// variables4.rs
// Make me compile! Execute the command `rustlings hint variables4` if you want a hint :)
-// I AM NOT DONE
fn main() {
- let x: i32;
+ let x: i32 = 123;
println!("Number {}", x);
}
diff --git a/exercises/variables/variables5.rs b/exercises/variables/variables5.rs
index 5b2c2fa..a03f192 100644
--- a/exercises/variables/variables5.rs
+++ b/exercises/variables/variables5.rs
@@ -1,11 +1,10 @@
// variables5.rs
// Make me compile! Execute the command `rustlings hint variables5` if you want a hint :)
-// I AM NOT DONE
fn main() {
let number = "3"; // don't change this line
println!("Number {}", number);
- number = 3;
+ let number = 3;
println!("Number {}", number);
}
diff --git a/exercises/variables/variables6.rs b/exercises/variables/variables6.rs
index 9866691..1b64ff1 100644
--- a/exercises/variables/variables6.rs
+++ b/exercises/variables/variables6.rs
@@ -1,9 +1,8 @@
// variables6.rs
// Make me compile! Execute the command `rustlings hint variables6` if you want a hint :)
-// I AM NOT DONE
-const NUMBER = 3;
+const NUMBER:i8 = 3;
fn main() {
println!("Number {}", NUMBER);
}