47 lines
550 B
Rust
47 lines
550 B
Rust
// Make me compile! Scroll down for hints :)
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fn main() {
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let x: i32 = 30;
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if x == 10 {
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println!("Ten!");
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} else {
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println!("Not ten!");
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}
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}
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// The compiler message is saying that Rust cannot infer the type that the
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// variable binding `x` has with what is given here.
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// What happens if you annotate line 4 with a type annotation?
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// What if you give x a value?
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// What if you do both?
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// What type should x be, anyway?
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// What if x is the same type as 10? What if it's a different type?
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