mirror of https://github.com/rust-lang/rustlings
Add hints to the variable bindings exercises
parent
9cf4958982
commit
dbfab88e61
@ -1,6 +1,41 @@
|
||||
// Make me compile!
|
||||
// Make me compile! Scroll down for hints :)
|
||||
|
||||
fn main() {
|
||||
x = 5;
|
||||
println!("x has the value {}", x);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
// Hint: The declaration on line 4 is missing a keyword that is needed in Rust
|
||||
// to create a new variable binding.
|
||||
|
@ -1,6 +1,44 @@
|
||||
// Make me compile!
|
||||
// Make me compile! Scroll down for hints :)
|
||||
|
||||
fn main() {
|
||||
let x: i32;
|
||||
println!("Number {}", x);
|
||||
}
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
|
||||
// Oops! In this exercise, we have a variable binding that we've created on
|
||||
// line 4, and we're trying to use it on line 5, but we haven't given it a
|
||||
// value. We can't print out something that isn't there; try giving x a value!
|
||||
// This is an error that can cause bugs that's very easy to make in any
|
||||
// programming language -- thankfully the Rust compiler has caught this for us!
|
||||
|
Loading…
Reference in New Issue