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ch19 高度な機能の和訳を最新版に更新
rust-lang/book@19c40bf
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‎listings/ch19-advanced-features/listing-19-01/Cargo.toml

Lines changed: 1 addition & 2 deletions
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@@ -1,7 +1,6 @@
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[package]
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name = "unsafe-example"
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version = "0.1.0"
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authors = ["Your Name <you@example.com>"]
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edition = "2018"
4+
edition = "2021"
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[dependencies]

‎listings/ch19-advanced-features/listing-19-02/Cargo.toml

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@@ -1,7 +1,6 @@
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[package]
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name = "unsafe-example"
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version = "0.1.0"
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authors = ["Your Name <you@example.com>"]
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edition = "2018"
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edition = "2021"
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76
[dependencies]

‎listings/ch19-advanced-features/listing-19-03/Cargo.toml

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,6 @@
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[package]
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name = "unsafe-example"
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version = "0.1.0"
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authors = ["Your Name <you@example.com>"]
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edition = "2018"
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edition = "2021"
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[dependencies]

‎listings/ch19-advanced-features/listing-19-04/Cargo.toml

Lines changed: 1 addition & 2 deletions
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@@ -1,7 +1,6 @@
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[package]
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name = "unsafe-example"
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version = "0.1.0"
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authors = ["Your Name <you@example.com>"]
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edition = "2018"
4+
edition = "2021"
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76
[dependencies]

‎listings/ch19-advanced-features/listing-19-05/Cargo.toml

Lines changed: 1 addition & 2 deletions
Original file line numberDiff line numberDiff line change
@@ -1,7 +1,6 @@
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[package]
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name = "unsafe-example"
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version = "0.1.0"
4-
authors = ["Your Name <you@example.com>"]
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edition = "2018"
4+
edition = "2021"
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[dependencies]

‎listings/ch19-advanced-features/listing-19-05/output.txt

Lines changed: 15 additions & 14 deletions
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@@ -1,21 +1,22 @@
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$ cargo run
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Compiling unsafe-example v0.1.0 (file:///projects/unsafe-example)
3-
error[E0499]: cannot borrow `*slice` as mutable more than once at a time
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--> src/main.rs:6:30
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error[E0499]: cannot borrow `*values` as mutable more than once at a time
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(エラー: 一度に2回以上、`*values`を可変で借用できません)
5+
--> src/main.rs:6:31
56
|
6-
1 | fn split_at_mut(slice: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) {
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| - let's call the lifetime of this reference `'1`
7+
1 | fn split_at_mut(values: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) {
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| - let's call the lifetime of this reference `'1`
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| (この参照のライフタイムを`'1`とします)
810
...
9-
6 | (&mut slice[..mid], &mut slice[mid..])
10-
| -------------------------^^^^^--------
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| | | |
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| | | second mutable borrow occurs here
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6 | (&mut values[..mid], &mut values[mid..])
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| --------------------------^^^^^^--------
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| | | |
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| | | second mutable borrow occurs here
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| | | (2回目の可変参照はここで発生します)
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| | first mutable borrow occurs here
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| returning this value requires that `*slice` is borrowed for `'1`
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16-
error: aborting due to previous error
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| | (1回目の可変参照はここで発生します)
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| returning this value requires that `*values` is borrowed for `'1`
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| (この値を返すためには`*values`が`'1`の間借用されていることが必要です)
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For more information about this error, try `rustc --explain E0499`.
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error: could not compile `unsafe-example`.
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21-
To learn more, run the command again with --verbose.
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error: could not compile `unsafe-example` (bin "unsafe-example") due to 1 previous error

‎listings/ch19-advanced-features/listing-19-05/src/main.rs

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// ANCHOR: here
2-
fn split_at_mut(slice: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) {
3-
let len = slice.len();
2+
fn split_at_mut(values: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) {
3+
let len = values.len();
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55
assert!(mid <= len);
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7-
(&mut slice[..mid], &mut slice[mid..])
7+
(&mut values[..mid], &mut values[mid..])
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}
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// ANCHOR_END: here
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‎listings/ch19-advanced-features/listing-19-06/Cargo.toml

Lines changed: 1 addition & 2 deletions
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@@ -1,7 +1,6 @@
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[package]
22
name = "unsafe-example"
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version = "0.1.0"
4-
authors = ["Your Name <you@example.com>"]
5-
edition = "2018"
4+
edition = "2021"
65

76
[dependencies]

‎listings/ch19-advanced-features/listing-19-06/src/main.rs

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// ANCHOR: here
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use std::slice;
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4-
fn split_at_mut(slice: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) {
5-
let len = slice.len();
6-
let ptr = slice.as_mut_ptr();
4+
fn split_at_mut(values: &mut [i32], mid: usize) -> (&mut [i32], &mut [i32]) {
5+
let len = values.len();
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let ptr = values.as_mut_ptr();
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assert!(mid <= len);
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‎listings/ch19-advanced-features/listing-19-07/Cargo.toml

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@@ -1,7 +1,6 @@
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[package]
22
name = "unsafe-example"
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version = "0.1.0"
4-
authors = ["Your Name <you@example.com>"]
5-
edition = "2018"
4+
edition = "2021"
65

76
[dependencies]

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