{"id":8054,"date":"2024-10-25T23:24:35","date_gmt":"2024-10-25T14:24:35","guid":{"rendered":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=8054"},"modified":"2023-12-15T15:17:22","modified_gmt":"2023-12-15T06:17:22","slug":"rust-%eb%ac%b8%eb%b2%95-%ec%a0%95%eb%a6%ac","status":"publish","type":"post","link":"https:\/\/www.skyer9.pe.kr\/wordpress\/?p=8054","title":{"rendered":"Rust \u2013 \ubb38\ubc95 \uc815\ub9ac"},"content":{"rendered":"

Rust \u2013 \ubb38\ubc95 \uc815\ub9ac<\/h1>\n

\uc544\ub798\uc758 \uc124\uba85\ub4e4\uc740 \uc5ec\uae30<\/a> \uc5d0 \uc124\uba85\ub41c \ubc29\uc2dd\uc73c\ub85c \uac1c\ubc1c\ud658\uacbd\uc774 \uad6c\ucd95\ub41c \uc0c1\ud669\uc744 \uc804\uc81c\ub85c \uc124\uba85\ud569\ub2c8\ub2e4.<\/p>\n

\ubcc0\uc218<\/h2>\n
fn main() {\n    let x: i32 = 10;\n    let mut y: i32 = 20;\n    y = y + x;\n    println!("x: {x}");\n    println!("y: {y}");\n}<\/code><\/pre>\n
\ubcc0\uc218\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \ubd88\ubcc0(immutable) \uc785\ub2c8\ub2e4.
\n\ubcc0\uacbd \uac00\ub2a5\ud558\uac8c \ud558\ub824\uba74 mut<\/code> \ud0a4\uc6cc\ub4dc\ub97c \ubd99\uc5ec\uc8fc\uc5b4\uc57c \ud569\ub2c8\ub2e4.<\/p>\n
\ubcc0\uc218 \ud0c0\uc785\uc740 \uc0dd\ub7b5 \uac00\ub2a5\ud569\ub2c8\ub2e4.
\n\uc0dd\ub7b5\ub41c \ud0c0\uc785\uc740 \ucef4\ud30c\uc77c\ub7ec\uac00 \uc790\ub3d9\uc73c\ub85c \ud0c0\uc785\uc744 \ucd94\ub860\ud569\ub2c8\ub2e4.<\/p>\n
\ud0c0\uc785 \ucd94\ub860<\/h3>\n
fn takes_u32(x: u32) {\n    println!("u32: {x}");\n}\n\nfn takes_i8(y: i8) {\n    println!("i8: {y}");\n}\n\nfn main() {\n    let x = 10;\n    let y = 20;\n\n    takes_u32(x);\n    takes_i8(y);\n}<\/code><\/pre>\n
\ubcc0\uc218\uc758 \ud0c0\uc785\uc740 \uc0dd\ub7b5\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.
\n\ucef4\ud30c\uc77c\ub7ec\ub294 \ubcc0\uc218\uac00 \uc0ac\uc6a9\ub41c \uc0c1\ud0dc\ub97c \uae30\ubc18\uc73c\ub85c \ubcc0\uc218\uc758 \ud0c0\uc785\uc744 \uc790\ub3d9\ucd94\ub860\ud574\uc90d\ub2c8\ub2e4.<\/p>\n
\uc0c1\uc218<\/h3>\n
const DIGEST_SIZE: usize = 3;\nstatic BANNER: &str = "Welcome to Rust";\n\nfn main() {\n    let _size = DIGEST_SIZE;\n    let _banner = BANNER;\n}<\/code><\/pre>\n
const<\/code>, static<\/code> \ubaa8\ub450 \uc0c1\uc218\ub97c \ud45c\ud604\ud558\uc9c0\ub9cc \uc791\ub3d9\uc774 \ub2e4\ub985\ub2c8\ub2e4.
\nconst<\/code> \ub294 \ud568\uc218\uc5d0\uc11c \uc774\uc6a9\ub420 \ub54c \ud568\uc218\uc5d0 \ud560\ub2f9\ub41c \uc601\uc5ed\uc73c\ub85c \uac12\uc774 \ubcf5\uc0ac\ub429\ub2c8\ub2e4.
\nstatic<\/code> \uc758 \uacbd\uc6b0\ub294 \ud504\ub85c\uadf8\ub7a8 \uc804\uc5ed\uc5d0 \ub2e8 \ud558\ub098\uc758 \uac12\ub9cc\uc774 \uc874\uc7ac\ud558\uace0, \ubaa8\ub4e0 \ud568\uc218\ub294 \uc774 \uac12\uc744 \uc774\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n
\uba54\ubaa8\ub9ac \uc0ac\uc6a9\ub7c9 \uba74\uc5d0\uc11c\ub294 static<\/code> \uc774 \uc720\ub9ac\ud558\uc9c0\ub9cc, \ud558\ub098\uc758 \ud568\uc218\uc5d0\uc11c \ubb38\uc790\uc5f4\uc758 \ub0b4\uc6a9\uc744 \uc218\uc815\ud560 \uacbd\uc6b0 \ubaa8\ub4e0 \ud568\uc218\uc5d0\uc11c \uc601\ud5a5\uc744 \ubc1b\uc73c\ubbc0\ub85c \uc704\ud5d8\uc131\ub3c4 \ub298\uc5b4\ub0a9\ub2c8\ub2e4.<\/p>\n
\uc77c\ubc18\uc801\uc73c\ub85c const<\/code> \ub97c \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uad8c\uc7a5\ub429\ub2c8\ub2e4.<\/p>\n
\ubcc0\uc218 \uc228\uae30\uae30(Shadowing)<\/h3>\n
fn main() {\n    let a = 10;\n    println!("before: {a}");\n    {\n        let a = "hello";\n        println!("inner scope: {a}");\n\n        let a = true;\n        println!("shadowed in inner scope: {a}");\n    }\n\n    println!("after: {a}");\n}<\/code><\/pre>\n
\ubc94\uc704 \ubc14\uae65 \ubfd0\ub9cc \uc544\ub2c8\ub77c, \ubc94\uc704 \ub0b4\ubd80\uc758 \ubcc0\uc218\ub3c4 \uc228\uae38 \uc218 \uc788\uc2b5\ub2c8\ub2e4.
\n\ub3d9\uc77c \ubc94\uc704 \ub0b4\ubd80\uc5d0\uc11c\uc758 Shadowing \uc740 \uc0c8\ub85c\uc6b4 \ubcc0\uc218\ub97c \uc0dd\uc131\ud558\ub294 \uac83\uacfc \uac19\uc544\uc11c,
\n\ud0c0\uc785\uc744 \ubcc0\uacbd\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc5f4\uac70\ud615(enum)<\/h2>\n
use std::any::type_name;\nuse std::mem::{align_of, size_of};\n\n#[derive(Debug)]\nenum CoinFace {\n    Front, Back\n}\n\nfn main() {\n    println!("Coin face is {:?}", CoinFace::Front);\n    println!("Coin face is {:?}", CoinFace::Back);\n\n    println!("{}: size {} bytes, align: {} bytes",\n        type_name::<CoinFace>(), size_of::<CoinFace>(), align_of::<CoinFace>());\n}<\/code><\/pre>\n
enum \uc5d0 \uac12\uc744 \ud560\ub2f9\ud558\uc9c0 \uc54a\ub294 \uacbd\uc6b0 0, 1, 2, … \uc758 \uac12\uc774 \ud560\ub2f9\ub429\ub2c8\ub2e4.<\/p>\n
enum \uc758 \uc0ac\uc774\uc988\ub294 \ud544\uc694\ud55c \ucd5c\uc18c\ud55c\uc758 \uc0ac\uc774\uc988\ub97c \uac00\uc9d1\ub2c8\ub2e4.
\n(\ud558\uc9c0\ub9cc \uc774 \ubd80\ubd84\uc740 \uc124\uba85\uc774 \ubcf5\uc7a1\ud574\uc9c0\ubbc0\ub85c \uc9c1\uc811 \ud655\uc778\ud558\uae30 \ubc14\ub78d\ub2c8\ub2e4.)<\/p>\n
\ud750\ub984 \uc81c\uc5b4<\/h2>\n
\ube14\ub85d<\/h3>\n
fn main() {\n    let _x = {\n        3 + 4\n    };\n\n    let _y = {\n        let _ = 3 + 4;\n    };\n}<\/code><\/pre>\n
\ubaa8\ub4e0 \ube14\ub85d\uc740 \ub9ac\ud134 \uac12\uacfc \ud0c0\uc785\uc744 \uac00\uc9d1\ub2c8\ub2e4.
\n\ub9ac\ud134\ud558\ub294 \uac12\uc774 \uc5c6\uc73c\uba74 ()<\/code> \uc774 \ub9ac\ud134\uac12\uc774 \ub429\ub2c8\ub2e4.
\n\ub9ac\ud134\uac12\uc740 \uc138\ubbf8\ucf5c\ub860 ;<\/code> \uc774 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n
if<\/h2>\n
fn main() {\n    let mut x = 10;\n    if x % 2 == 0 {\n        x = x \/ 2;\n    } else {\n        x = 3 * x + 1;\n    }\n}<\/code><\/pre>\n
else if<\/code> \uac00 \uc9c0\uc6d0\ub418\uc9c0\ub9cc match<\/code> \ub97c \uc4f0\ub294 \uac83\uc774 \uad8c\uc7a5\ub429\ub2c8\ub2e4.<\/p>\n
fn main() {\n    let mut x = 10;\n    x = if x % 2 == 0 {\n        x \/ 2\n    } else {\n        3 * x + 1\n    };\n}<\/code><\/pre>\n
\ube14\ub85d\uc774 \ub9ac\ud134\uac12\uc774 \uc788\ub4ef\uc774, if \uc5ed\uc2dc \ub9ac\ud134\uac12\uc744 \uac00\uc9d1\ub2c8\ub2e4.
\n\ub9ac\ud134 \ud0c0\uc785\uc774 \ub3d9\uc77c\ud558\uc9c0 \uc54a\uc73c\uba74 \ucef4\ud30c\uc77c\ub7ec \uc624\ub958\uac00 \ubc1c\uc0dd\ud569\ub2c8\ub2e4.<\/p>\n
for<\/h3>\n
fn main() {\n    let v = vec![10, 20, 30];\n\n    for x in v {\n        println!("x: {x}");\n    }\n\n    for i in (0..10).step_by(2) {\n        println!("i: {i}");\n    }\n}<\/code><\/pre>\n
\ub2e4\ub978 \uc5b8\uc5b4\uc640 \ub9c8\ucc2c\uac00\uc9c0\ub85c break \uc640 continue\ub97c \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
while<\/h3>\n
fn main() {\n    let mut x = 10;\n    while x != 1 {\n        x = if x % 2 == 0 {\n            x \/ 2\n        } else {\n            3 * x + 1\n        };\n    }\n    println!("Final x: {x}");\n}<\/code><\/pre>\n
break, continue<\/h3>\n
fn main() {\n    let v = vec![10, 20, 30];\n    let mut iter = v.into_iter();\n    'outer: while let Some(x) = iter.next() {\n        println!("x: {x}");\n        let mut i = 0;\n        while i < x {\n            println!("x: {x}, i: {i}");\n            i += 1;\n            if i == 3 {\n                break 'outer;\n            }\n        }\n    }\n}<\/code><\/pre>\n
\uc911\ucca9 \ub8e8\ud504\uc5d0\uc11c \ub77c\ubca8\uc744 \uc774\uc6a9\ud574 \ube60\uc838 \ub098\uc62c \uc218 \uc788\uc2b5\ub2c8\ub2e4.
\nrust \ub294 goto<\/code> \ub97c \uc9c0\uc6d0\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n
loop<\/h3>\n
fn main() {\n    let mut x = 10;\n    loop {\n        x = if x % 2 == 0 {\n            x \/ 2\n        } else {\n            3 * x + 1\n        };\n        if x == 1 {\n            break;\n        }\n    }\n    println!("Final x: {x}");\n}<\/code><\/pre>\n
\ud2b9\uc218\ud55c \ud750\ub984 \uc81c\uc5b4<\/h2>\n
if let<\/h3>\n
fn main() {\n    let arg = std::env::args().next();\n    if let Some(value) = arg {\n        println!("Program name: {value}");\n    } else {\n        println!("Missing name?");\n    }\n}<\/code><\/pre>\n
while let<\/h3>\n
fn main() {\n    let v = vec![10, 20, 30];\n    let mut iter = v.into_iter();\n\n    while let Some(x) = iter.next() {\n        println!("x: {x}");\n    }\n}<\/code><\/pre>\n
match<\/h3>\n
fn main() {\n    match std::env::args().next().as_deref() {\n        Some("cat") => println!("Will do cat things"),\n        Some("ls")  => println!("Will ls some files"),\n        Some("mv")  => println!("Let's move some files"),\n        Some("rm")  => println!("Uh, dangerous!"),\n        None        => println!("Hmm, no program name?"),\n        _           => println!("Unknown program name!"),\n    }\n}<\/code><\/pre>\n
\uc5ed\uc2dc \ube14\ub85d\uc774\ubbc0\ub85c \ub9ac\ud134\uac12\uc744 \uac00\uc9c8 \uc218 \uc788\uc9c0\ub9cc \ubaa8\ub4e0 \ub9ac\ud134\uac12\uc758 \ud0c0\uc785\uc740 \ub3d9\uc77c\ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n
\ud328\ud134 \ub9e4\uce6d<\/h2>\n
fn main() {\n    let input = 'x';\n\n    match input {\n        'q'                   => println!("Quitting"),\n        'a' | 's' | 'w' | 'd' => println!("Moving around"),\n        '0'..='9'             => println!("Number input"),\n        _                     => println!("Something else"),\n    }\n}<\/code><\/pre>\n
_<\/code> \ub294 \uc704\uc758 \ub9e4\uce6d\uc774 \ubaa8\ub450 \uc2e4\ud328\ud588\uc744 \ub54c \ub9e4\uce6d\ub429\ub2c8\ub2e4.<\/p>\n
\uc5f4\uac70\ud615(enum) \ub9e4\uce6d<\/h3>\n
enum Result {\n    Ok(i32),\n    Err(String),\n}\n\nfn divide_in_two(n: i32) -> Result {\n    if n % 2 == 0 {\n        Result::Ok(n \/ 2)\n    } else {\n        Result::Err(format!("cannot divide {n} into two equal parts"))\n    }\n}\n\nfn main() {\n    let n = 100;\n    match divide_in_two(n) {\n        Result::Ok(half) => println!("{n} divided in two is {half}"),\n        Result::Err(msg) => println!("sorry, an error happened: {msg}"),\n    }\n}<\/code><\/pre>\n
\uad6c\uc870\uccb4(struct) \ub9e4\uce6d<\/h3>\n
struct Foo {\n    x: (u32, u32),\n    y: u32,\n}\n\n#[rustfmt::skip]\nfn main() {\n    let foo = Foo { x: (1, 2), y: 3 };\n    match foo {\n        Foo { x: (1, b), y } => println!("x = 1, b = {b}, y = {y}"),\n        Foo { y: 2, x: i }   => println!("y = 2, x = {i:?}"),\n        Foo { y, .. }        => println!("y = {y}, other fields were ignored"),\n    }\n}<\/code><\/pre>\n
\ubc30\uc5f4(array) \ub9e4\uce6d<\/h3>\n
#[rustfmt::skip]\nfn main() {\n    let triple = [0, -2, 3];\n    println!("Tell me about {triple:?}");\n    match triple {\n        [0, y, z] => println!("First is 0, y = {y}, and z = {z}"),\n        [1, ..]   => println!("First is 1 and the rest were ignored"),\n        _         => println!("All elements were ignored"),\n    }\n}<\/code><\/pre>\n
[.., z]<\/code> \uac19\uc740 \ud615\uc2dd\uc73c\ub85c\ub3c4 \ub9e4\uce6d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uc870\uac74\ubb38 \ub9e4\uce6d<\/h3>\n
#[rustfmt::skip]\nfn main() {\n    let pair = (2, -2);\n    println!("Tell me about {pair:?}");\n    match pair {\n        (x, y) if x == y     => println!("These are twins"),\n        (x, y) if x + y == 0 => println!("Antimatter, kaboom!"),\n        (x, _) if x % 2 == 1 => println!("The first one is odd"),\n        _                    => println!("No correlation..."),\n    }\n}<\/code><\/pre>\n
if<\/code> \uc870\uac74\ubb38\uc744 \uc774\uc6a9\ud574 \ub9e4\uce6d\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uba54\ubaa8\ub9ac \uad00\ub9ac<\/h2>\n
\uc18c\uc720\uad8c<\/h3>\n
struct Point(i32, i32);\n\nfn main() {\n    {\n        let p = Point(3, 4);\n        println!("x: {}", p.0);\n    }\n    println!("y: {}", p.1);\n}<\/code><\/pre>\n
\ubaa8\ub4e0 \ubcc0\uc218\ub294 \ubc94\uc704\ub97c \uac00\uc9c0\uace0, \ubc94\uc704\ub97c \ubc97\uc5b4\ub098\uba74 \ubcc0\uc218\ub294 \uc0ac\ub77c\uc9d1\ub2c8\ub2e4.
\n\ubc94\uc704 \uc548\uc5d0\uc11c \ubcc0\uc218\ub294 \uac12\uc744 \uc18c\uc720(Ownership) \ud55c\ub2e4\uace0 \ud45c\ud604\ub2c8\ub2e4.<\/p>\n
\uc18c\uc720\uad8c \uc774\ub3d9 : \ubcc0\uc218 \ud560\ub2f9<\/h3>\n
fn main() {\n    let s1: String = String::from("Hello!");\n    println!("s1: {s1}");\n\n    let s2: String = s1;\n    \/\/ println!("s1: {s1}");   \/\/ compiler error\n    println!("s2: {s2}");\n}<\/code><\/pre>\n
\uac12\uc744 \ub2e4\ub978 \ubcc0\uc218\uc5d0 \ud560\ub2f9\ud558\uba74 \uc18c\uc720\uad8c\uc744 \uc0c1\uc2e4\ud569\ub2c8\ub2e4.
\n\uc18c\uc720\uad8c\uc740 \ub2e8 \ud558\ub098\uc758 \ubcc0\uc218\ub9cc \uac00\uc9d1\ub2c8\ub2e4.<\/strong>
\n\uc18c\uc720\uad8c\uc744 \uc0c1\uc2e4\ud558\uba74 \uac12\uc5d0 \ub300\ud55c \ubaa8\ub4e0 \uc811\uadfc\uc774 \ucc28\ub2e8\ub429\ub2c8\ub2e4.<\/p>\n
fn main() {\n    let s1: String = String::from("Hello!");\n    println!("s1: {s1}");\n\n    let s2: String = s1.clone();\n    println!("s1: {s1}");   \/\/ ok\n    println!("s2: {s2}");\n}<\/code><\/pre>\n
\ubcf5\uc0ac\ud560\ub54c\uc5d0\ub294 \uba85\uc2dc\uc801\uc73c\ub85c clone\uc744 \uc0ac\uc6a9\ud569\ub2c8\ub2e4.<\/p>\n
fn main() {\n    let i1 = 10;\n    println!("i: {i1}");\n\n    let i2 = i1;\n    println!("i1: {i1}");   \/\/ ok\n    println!("i2: {i2}");\n}<\/code><\/pre>\n
\uc815\uc218\uac19\uc740 \uac04\ub2e8\ud55c \uac12\uc740 \ubcf5\uc0ac\uac00 \ub429\ub2c8\ub2e4.<\/p>\n
\uc18c\uc720\uad8c \uc774\ub3d9 : \ud568\uc218 \ud30c\ub77c\ubbf8\ud130 \ud560\ub2f9<\/h3>\n
fn say_hello(name: String) {\n    println!("Hello {name}")\n}\n\nfn main() {\n    let name = String::from("Alice");\n    say_hello(name);\n    \/\/ say_hello(name);     \/\/ compiler error\n}<\/code><\/pre>\n
\ud568\uc218 \ud30c\ub77c\ubbf8\ud130\ub85c \uc804\ub2ec\ud558\ub294 \uac83\ub9cc\uc73c\ub85c\ub3c4 \uc5ed\uc2dc \uc18c\uc720\uad8c\uc774 \uc774\ub3d9\ud569\ub2c8\ub2e4.<\/p>\n
fn say_hello(name: &String) {\n    println!("Hello {name}")\n}\n\nfn main() {\n    let name = String::from("Alice");\n    say_hello(&name);\n    say_hello(&name);     \/\/ ok\n}<\/code><\/pre>\n
\ucc38\uc870\ub85c \uc804\ub2ec\ud558\uba74 \uc18c\uc720\uad8c \uc774\ub3d9\uc740 \ubc1c\uc0dd\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.<\/p>\n
\ubcf5\uc0ac(copy)\uc640 \ubcf5\uc81c(clone)<\/h3>\n
fn main() {\n    let x = "string";\n    let y = x;\n    println!("x: {x}");\n    println!("y: {y}");\n}<\/code><\/pre>\n
\uac1d\uccb4\uac00 \uc544\ub2c8\ub77c \ubb38\uc790\uc5f4 \ucc38\uc870\uac00 \ud560\ub2f9\ub418\ubbc0\ub85c \uc18c\uc720\uad8c \uc774\ub3d9\uc774 \uc5c6\uc2b5\ub2c8\ub2e4.
\n\uc815\uc218\uc640 \uac19\uc774 \uac04\ub2e8\ud55c \uac12\uc73c\ub85c \ucde8\uae09\ub418\uae30 \ub54c\ubb38\uc785\ub2c8\ub2e4.<\/p>\n
#[derive(Copy, Clone, Debug)]\nstruct Point(i32, i32);\n\nfn main() {\n    let p1 = Point(3, 4);\n    let p2 = p1;\n    println!("p1: {p1:?}");\n    println!("p2: {p2:?}");\n}<\/code><\/pre>\n
Copy<\/code> \ud2b8\ub808\uc787\uc744 \uad6c\ud604\ud558\uc5ec \ubcf5\uc0ac\ub97c \ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4:
\n\uba85\uc2dc\uc801\uc73c\ub85c p1.clone()<\/code> \uc744 \uc0ac\uc6a9\ud558\uc5ec \ub370\uc774\ud130\ub97c \ubcf5\uc0ac\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\n
\ubcf5\uc0ac\uc640 \ubcf5\uc81c\uc758 \ucc28\uc774<\/p>\n
\ubcf5\uc0ac(copy) \ub294 \uc544\ubb34\ub7f0 \ucee4\uc2a4\ud130\ub9c8\uc774\uc9d5 \uc5c6\uc774 \uc6d0\ubcf8 \uac12\uc744 \uadf8\ub300\ub85c \ubcf5\uc0ac\ud569\ub2c8\ub2e4.
\n\ubcf5\uc81c(clone) \ub294 \ucee4\uc2a4\ud130\ub9c8\uc774\uc9d5\uc774 \uac00\ub2a5\ud569\ub2c8\ub2e4.
\nString \uc740 \uac12 \uc790\uccb4\uac00 \uc544\ub2c8\ub77c \ubb38\uc790\uc5f4\uc5d0 \ub300\ud55c \uc8fc\uc18c\uac12\ub9cc \uac00\uc9c0\uace0 \uc788\uae30\uc5d0 copy \ub97c \uad6c\ud604\ud558\uc9c0 \uc54a\uc2b5\ub2c8\ub2e4.
\n\ub530\ub77c\uc11c \uad6c\uc870\uccb4\uc758 \ub9f4\ubc84 \uc911 \ud558\ub098\uac00 String \uc744 \ud3ec\ud568\ud558\uba74 \uadf8 \uad6c\uc870\uccb4\ub3c4 copy \ub97c \uad6c\ud604\ud560 \uc218 \uc5c6\uc2b5\ub2c8\ub2e4.<\/p>\n<\/blockquote>\n
\ucc38\uc870 \uc81c\ud55c<\/h3>\n
\uacf5\uc720\uac00\ub2a5\ud55c \ubd88\ubcc0 \uacfc \uc720\uc77c\ud55c \uac00\ubcc0 \uc73c\ub85c \ud45c\ud604\ud569\ub2c8\ub2e4.<\/p>\n
\ud55c\ubc88\uc5d0 \ud558\ub098 \uc774\uc0c1\uc758 &T (\uc218\uc815 \ubd88\uac00\ud55c \ucc38\uc870) \uac12\uc744 \uac00\uc9c0\uac70\ub098, \ub610\ub294
\n\uc815\ud655\ud788 \ud558\ub098\uc758 &mut T (\uc218\uc815 \uac00\ub2a5\ud55c \ucc38\uc870) \uac12\ub9cc\uc744 \uac00\uc9c8 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uacf5\uc720\uac00\ub2a5\ud55c \ubd88\ubcc0<\/h4>\n
\ud558\ub098\uc758 \ubcc0\uc218\uc5d0 \ub300\ud574 \ub2e4\uc218\uc758 \ubd88\ubcc0 \ubcc0\uc218\ub294 \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n
fn main() {\n    let a: i32 = 10;\n    let b: &i32 = &a;\n    let c: &i32 = &a;\n\n    println!("a: {a}");\n    println!("b: {b}");\n    println!("c: {c}");\n}<\/code><\/pre>\n
\uc720\uc77c\ud55c \uac00\ubcc0<\/h4>\n
\uac00\ubcc0 \ucc38\uc870\ub294 \ub2e8 \ud558\ub098\ub9cc \uac00\ub2a5\ud569\ub2c8\ub2e4.<\/p>\n
fn main() {\n    let a: &mut i32 = &mut 10;\n    let b: &mut i32 = a;\n    let c: &mut i32 = a; \/\/ error[E0499]: cannot borrow `*a` as mutable more than once at a time\n\n    *b = 20;\n    *c = 30;\n\n    \/\/ println!("a: {a}");\n    println!("b: {b}");\n    println!("c: {c}");\n}<\/code><\/pre>\n
\uad6c\uc870\uccb4(struct)<\/h2>\n
\uad6c\uc870\uccb4 \uc77c\ubc18<\/h3>\n
struct Person {\n    name: String,\n    age: u8,\n}\n\nfn main() {\n    let mut peter = Person {\n        name: String::from("Peter"),\n        age: 27,\n    };\n    println!("{} is {} years old", peter.name, peter.age);\n\n    peter.age = 28;\n    println!("{} is {} years old", peter.name, peter.age);\n\n    let jackie = Person {\n        name: String::from("Jackie"),\n        ..peter\n    };\n    println!("{} is {} years old", jackie.name, jackie.age);\n}<\/code><\/pre>\n
..peter<\/code> \ubb38\ubc95\uc740 \ud55c \uad6c\uc870\uccb4\uc5d0\uc11c \ub2e4\ub978 \uad6c\uc870\uccb4\ub85c \ub300\ubd80\ubd84\uc758 \uac12\uc744 \ubcf5\uc0ac\ud558\ub824\uace0 \ud558\ub294 \uacbd\uc6b0\uc5d0 \ud558\ub098\ud558\ub098 \ud0c0\uc774\ud551\ud558\ub294 \uc218\uace0\ub97c \ub35c\uc5b4\uc90d\ub2c8\ub2e4.
\n\ubc18\ub4dc\uc2dc \ub9e8 \ub9c8\uc9c0\ub9c9\uc5d0 \uc640\uc57c \ud569\ub2c8\ub2e4.<\/p>\n
\ud29c\ud50c \uad6c\uc870\uccb4<\/h3>\n
struct Point(i32, i32);\n\nfn main() {\n    let p = Point(17, 23);\n    println!("({}, {})", p.0, p.1);\n}<\/code><\/pre>\n
\ud544\ub4dc\uba85 \uc5c6\uc774 \uad6c\uc870\uccb4\ub97c \uc0dd\uc131\ud560 \uc218\ub3c4 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uad6c\uc870\uccb4 \uba54\uc18c\ub4dc<\/h3>\n
#[derive(Debug)]\nstruct Person {\n    name: String,\n    age: u8,\n}\n\nimpl Person {\n    fn new(name: String, age: u8) -> Person {\n        Person { name, age }\n    }\n    fn say_hello(&self) {\n        println!("Hello, my name is {}", self.name);\n    }\n}\n\nfn main() {\n    let peter = Person::new(String::from("Peter"), 27);\n    println!("{peter:?}");\n    peter.say_hello();\n}<\/code><\/pre>\n
impl<\/code> \ud0a4\uc6cc\ub4dc\ub97c \uc774\uc6a9\ud574 \uba54\uc18c\ub4dc\ub97c \uc0dd\uc131\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
impl Person {\n    fn new1(name: String, age: u8) -> Self {\n        Self { name, age }\n    }\n}<\/code><\/pre>\n
Person<\/code> \uc740 Self<\/code> \ub85c \ubcc0\uacbd\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\uba54\uc18c\ub4dc\uc758 \uccab\ubc88\uc9f8 \ud30c\ub77c\ubbf8\ud130\uac00 &self<\/code> \uc778\uac83\uc744 \ud655\uc778\ud558\uc138\uc694.<\/p>\n
\uba54\uc11c\ub4dc \ub9ac\uc2dc\ubc84(Receiver)<\/h3>\n
\ud30c\ub77c\ubbf8\ud130\uc5d0 self \ub97c \ud560\ub2f9\ud558\ub294 \uac83\uc744 \ub9ac\uc2dc\ubc84\ub77c\uace0 \ud569\ub2c8\ub2e4.<\/p>\n
fn say_hello(&self) { ... }\nfn say_hello(&mut self) { ... }\nfn say_hello(self) { ... }\nfn say_hello(mut self) { ... }<\/code><\/pre>\n
&self<\/code> : \ubd88\ubcc0 \ucc38\uc870\ub85c \ubc1b\uc2b5\ub2c8\ub2e4.
\n&mut self<\/code> : \uac12\uc744 \uc218\uc815\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.
\nself<\/code> : \uac1d\uccb4\uc758 \uc18c\uc720\uad8c\uc744 \uac00\uc838\uc635\ub2c8\ub2e4. \ub2e4\uc2dc \uac1d\uccb4\uc5d0 \uc18c\uc720\uad8c\uc744 \ubc18\ud658\ud558\uc9c0 \uc54a\uc73c\uba74 \uac1d\uccb4\ub294 \uac1d\uccb4\ub294 drop(\ud574\uc81c)\ub429\ub2c8\ub2e4.
\nmut self<\/code> : \uac1d\uccb4\uc758 \uc18c\uc720\uad8c\uacfc \uc218\uc815\ud560 \uc218 \uc788\ub294 \uad8c\ud55c\uae4c\uc9c0 \ubc1b\uc2b5\ub2c8\ub2e4.<\/p>\n
\ubaa8\ub4c8<\/h2>\n
mod foo {\n    pub fn do_something() {\n        println!("In the foo module");\n    }\n}\n\nmod bar {\n    pub fn do_something() {\n        println!("In the bar module");\n    }\n}\n\nfn main() {\n    foo::do_something();\n    bar::do_something();\n}<\/code><\/pre>\n
\uac00\uc2dc\uc131<\/h3>\n
mod outer {\n    fn private() {\n        println!("outer::private");\n    }\n\n    pub fn public() {\n        println!("outer::public");\n        inner::public();\n    }\n\n    mod inner {\n        fn private() {\n            println!("outer::inner::private");\n        }\n\n        pub fn public() {\n            println!("outer::inner::public");\n            super::private();\n            private();\n        }\n    }\n}\n\nfn main() {\n    outer::public();\n}<\/code><\/pre>\n
pub<\/code> \ub97c \uc81c\uac70\ud558\uba74 \uc678\ubd80\uc5d0\uc11c \uc811\uadfc\uc774 \ubd88\uac00\ub2a5\ud569\ub2c8\ub2e4.
\npub<\/code> \ud0a4\uc6cc\ub4dc\ub294 \ubaa8\ub4c8\uc5d0\ub3c4 \uc0ac\uc6a9\ud560 \uc218 \uc788\uc2b5\ub2c8\ub2e4.<\/p>\n
\ud30c\uc77c \ubd84\ub9ac<\/h3>\n
\ud30c\uc77c\uc744 \ubd84\ub9ac\ud55c \uacbd\uc6b0 \ud30c\uc77c\uba85\uc774 \ubaa8\ub4c8\uba85\uc774 \ub429\ub2c8\ub2e4.
\n\ud30c\uc77c\uba85\uc740 \uae30\ubcf8 \ub77c\uc774\ube0c\ub7ec\ub9ac\uc758 \ub124\uc784\uc2a4\ud398\uc774\uc2a4\uc640 \uc911\ubcf5\uc774 \ub418\uc9c0 \uc54a\ub3c4\ub85d \ud574\uc57c \ud569\ub2c8\ub2e4.<\/p>\n
mylib.rs<\/p>\n
fn private() {\n    println!("outer::private");\n}\n\npub fn public() {\n    println!("outer::public");\n    inner::public();\n}\n\nmod inner {\n    fn private() {\n        println!("outer::inner::private");\n    }\n\n    pub fn public() {\n        println!("outer::inner::public");\n        super::private();\n        private();\n    }\n}<\/code><\/pre>\n
main.rs<\/p>\n
mod mylib;\n\nfn main() {\n    mylib::public();\n}<\/code><\/pre>\n
\uc81c\ub108\ub9ad(generic)<\/h2>\n
#[derive(Debug)]\nstruct Point<T> {\n    x: T,\n    y: T,\n}\n\nfn main() {\n    let integer = Point { x: 5, y: 10 };\n    let float = Point { x: 1.0, y: 4.0 };\n    println!("{integer:?} and {float:?}");\n}<\/code><\/pre>\n
\uc81c\ub108\ub9ad \uba54\uc11c\ub4dc<\/h3>\n
#[derive(Debug)]\nstruct Point<T>(T, T);\n\nimpl<T> Point<T> {\n    fn x(&self) -> &T {\n        &self.0  \/\/ + 10\n    }\n\n    \/\/ fn set_x(&mut self, x: T)\n}\n\nfn main() {\n    let p = Point(5, 10);\n    println!("p.x = {}", p.x());\n}<\/code><\/pre>\n
\ub2e8\ud615\ud654<\/h3>\n
\uc81c\ub108\ub9ad\uc740 \uc2e4\uc81c \ud638\ucd9c\uc774 \uc788\ub294 \uc2dc\uc810\uc5d0 \uc2e4\uc81c\ub85c \uc0dd\uc131\ub429\ub2c8\ub2e4.
\n\ubbf8\ub9ac \ub9cc\ub4e4\uc5b4 \ub193\uc740 \ud0c0\uc785\ub4e4\uc744 \uc0ac\uc6a9\ud558\ub294 \uac83\uc774 \uc544\ub2d9\ub2c8\ub2e4.<\/p>\n
\ud2b8\ub808\uc787(Trait)<\/h3>\n
```\n\n```rust<\/code><\/pre>\n
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https:\/\/google.github.io\/comprehensive-rust\/ko\/modules.html<\/a><\/p>\n
\uad6c\uc870\uccb4<\/h2>\n
\uc870\uac74\ubb38<\/h2>\n
\ubc18\ubcf5\uad6c\ubb38<\/h2>\n
\ud568\uc218<\/h2>\n
\uc81c\ub108\ub9ad(generic)<\/h2>\n
\uc0c1\uc18d<\/h2>\n","protected":false},"excerpt":{"rendered":"
Rust \u2013 \ubb38\ubc95 \uc815\ub9ac \uc544\ub798\uc758 \uc124\uba85\ub4e4\uc740 \uc5ec\uae30 \uc5d0 \uc124\uba85\ub41c \ubc29\uc2dd\uc73c\ub85c \uac1c\ubc1c\ud658\uacbd\uc774 \uad6c\ucd95\ub41c \uc0c1\ud669\uc744 \uc804\uc81c\ub85c \uc124\uba85\ud569\ub2c8\ub2e4. \ubcc0\uc218 fn main() { let x: i32 = 10; let mut y: i32 = 20; y = y + x; println!("x: {x}"); println!("y: {y}"); } \ubcc0\uc218\ub294 \uae30\ubcf8\uc801\uc73c\ub85c \ubd88\ubcc0(immutable) \uc785\ub2c8\ub2e4. \ubcc0\uacbd \uac00\ub2a5\ud558\uac8c \ud558\ub824\uba74 mut \ud0a4\uc6cc\ub4dc\ub97c \ubd99\uc5ec\uc8fc\uc5b4\uc57c \ud569\ub2c8\ub2e4. \ubcc0\uc218 \ud0c0\uc785\uc740 \uc0dd\ub7b5 \uac00\ub2a5\ud569\ub2c8\ub2e4.\u2026 Read More »<\/a><\/span><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[42],"tags":[],"class_list":["post-8054","post","type-post","status-publish","format-standard","hentry","category-rust-language"],"_links":{"self":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/8054","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=8054"}],"version-history":[{"count":24,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/8054\/revisions"}],"predecessor-version":[{"id":8131,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=\/wp\/v2\/posts\/8054\/revisions\/8131"}],"wp:attachment":[{"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=8054"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=8054"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.skyer9.pe.kr\/wordpress\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=8054"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}