blob: 4f6bda6cfe3798337bcf44c79f9b4fba54208684 (
plain) (
blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
|
// Copyright 2018 The Rust Project Developers. See the COPYRIGHT
// file at the top-level directory of this distribution and at
// http://rust-lang.org/COPYRIGHT.
//
// Licensed under the Apache License, Version 2.0 <LICENSE-APACHE or
// http://www.apache.org/licenses/LICENSE-2.0> or the MIT license
// <LICENSE-MIT or http://opensource.org/licenses/MIT>, at your
// option. This file may not be copied, modified, or distributed
// except according to those terms.
#[doc(keyword = "fn")]
//
/// The `fn` keyword.
///
/// The `fn` keyword is used to declare a function.
///
/// Example:
///
/// ```rust
/// fn some_function() {
/// // code goes in here
/// }
/// ```
///
/// For more information about functions, take a look at the [Rust Book][book].
///
/// [book]: https://doc.rust-lang.org/book/second-edition/ch03-03-how-functions-work.html
mod fn_keyword { }
#[doc(keyword = "let")]
//
/// The `let` keyword.
///
/// The `let` keyword is used to declare a variable.
///
/// Example:
///
/// ```rust
/// # #![allow(unused_assignments)]
/// let x = 3; // We create a variable named `x` with the value `3`.
/// ```
///
/// By default, all variables are **not** mutable. If you want a mutable variable,
/// you'll have to use the `mut` keyword.
///
/// Example:
///
/// ```rust
/// # #![allow(unused_assignments)]
/// let mut x = 3; // We create a mutable variable named `x` with the value `3`.
///
/// x += 4; // `x` is now equal to `7`.
/// ```
///
/// For more information about the `let` keyword, take a look at the [Rust Book][book].
///
/// [book]: https://doc.rust-lang.org/book/second-edition/ch03-01-variables-and-mutability.html
mod let_keyword { }
|