2017-12-30 12:00:14 +00:00
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% Functions
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2017-03-03 14:50:30 +00:00
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2017-12-31 03:21:47 +00:00
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<small>There is a new edition of the book and this is an old link.</small>
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2017-12-31 01:56:24 +00:00
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> Function definitions in Rust start with `fn` and have a set of parentheses after the function name.
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> The curly brackets tell the compiler where the function body begins and ends.
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> We can call any function we’ve defined by entering its name followed by a set of parentheses.
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```rust
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fn main() {
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println!("Hello, world!");
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another_function();
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}
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fn another_function() {
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println!("Another function.");
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}
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```
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---
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2017-12-31 03:21:47 +00:00
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Here are the relevant sections in the new and old books:
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2017-03-03 14:50:30 +00:00
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2017-12-31 03:21:47 +00:00
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* **[In the first edition: Ch 3.2 — Functions][1]**
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2018-12-07 14:56:43 +00:00
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* <small>[in the current edition: Ch 3.03 — Functions][2]</small>
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2017-06-14 18:11:46 +00:00
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2018-12-07 14:56:43 +00:00
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[1]: https://doc.rust-lang.org/1.30.0/book/first-edition/functions.html
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[2]: ch03-03-how-functions-work.html
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