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Diffstat (limited to 'rust/rustlings/exercises/02_functions')
6 files changed, 58 insertions, 0 deletions
diff --git a/rust/rustlings/exercises/02_functions/README.md b/rust/rustlings/exercises/02_functions/README.md new file mode 100644 index 0000000..6662d0d --- /dev/null +++ b/rust/rustlings/exercises/02_functions/README.md @@ -0,0 +1,8 @@ +# Functions + +Here, you'll learn how to write functions and how the Rust compiler can help you debug errors even +in more complex code. + +## Further information + +- [How Functions Work](https://doc.rust-lang.org/book/ch03-03-how-functions-work.html) diff --git a/rust/rustlings/exercises/02_functions/functions1.rs b/rust/rustlings/exercises/02_functions/functions1.rs new file mode 100644 index 0000000..5dbae07 --- /dev/null +++ b/rust/rustlings/exercises/02_functions/functions1.rs @@ -0,0 +1,7 @@ +fn call_me() { + println!("call_me()"); +} + +fn main() { + call_me(); // Don't change this line +} diff --git a/rust/rustlings/exercises/02_functions/functions2.rs b/rust/rustlings/exercises/02_functions/functions2.rs new file mode 100644 index 0000000..27f2cc7 --- /dev/null +++ b/rust/rustlings/exercises/02_functions/functions2.rs @@ -0,0 +1,9 @@ +fn call_me(num: u32) { + for i in 0..num { + println!("Ring! Call number {}", i + 1); + } +} + +fn main() { + call_me(3); +} diff --git a/rust/rustlings/exercises/02_functions/functions3.rs b/rust/rustlings/exercises/02_functions/functions3.rs new file mode 100644 index 0000000..88dff5b --- /dev/null +++ b/rust/rustlings/exercises/02_functions/functions3.rs @@ -0,0 +1,9 @@ +fn call_me(num: u8) { + for i in 0..num { + println!("Ring! Call number {}", i + 1); + } +} + +fn main() { + call_me(3); +} diff --git a/rust/rustlings/exercises/02_functions/functions4.rs b/rust/rustlings/exercises/02_functions/functions4.rs new file mode 100644 index 0000000..2c5a3b0 --- /dev/null +++ b/rust/rustlings/exercises/02_functions/functions4.rs @@ -0,0 +1,17 @@ +fn is_even(num: i64) -> bool { + num % 2 == 0 +} + +// TODO: Fix the function signature. +fn sale_price(price: i64) -> i64 { + if is_even(price) { + price - 10 + } else { + price - 3 + } +} + +fn main() { + let original_price = 51; + println!("Your sale price is {}", sale_price(original_price)); +} diff --git a/rust/rustlings/exercises/02_functions/functions5.rs b/rust/rustlings/exercises/02_functions/functions5.rs new file mode 100644 index 0000000..024010f --- /dev/null +++ b/rust/rustlings/exercises/02_functions/functions5.rs @@ -0,0 +1,8 @@ +fn square(num: i32) -> i32 { + num * num +} + +fn main() { + let answer = square(3); + println!("The square of 3 is {answer}"); +} |