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KaiserY 2022-02-06 16:59:06 +08:00
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6
listings/ch02-guessing-game-tutorial/listing-02-01/Cargo.lock generated Executable file
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@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "guessing_game"
version = "0.1.0"

8
listings/ch02-guessing-game-tutorial/listing-02-01/Cargo.toml Executable file
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@ -0,0 +1,8 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]

31
listings/ch02-guessing-game-tutorial/listing-02-01/src/main.rs Executable file
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// ANCHOR: all
// ANCHOR: io
use std::io;
// ANCHOR_END: io
// ANCHOR: main
fn main() {
// ANCHOR_END: main
// ANCHOR: print
println!("Guess the number!");
println!("Please input your guess.");
// ANCHOR_END: print
// ANCHOR: string
let mut guess = String::new();
// ANCHOR_END: string
// ANCHOR: read
io::stdin()
.read_line(&mut guess)
// ANCHOR_END: read
// ANCHOR: expect
.expect("Failed to read line");
// ANCHOR_END: expect
// ANCHOR: print_guess
println!("You guessed: {}", guess);
// ANCHOR_END: print_guess
}
// ANCHOR: all

83
listings/ch02-guessing-game-tutorial/listing-02-02/Cargo.lock generated Executable file
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dependencies = [
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9
listings/ch02-guessing-game-tutorial/listing-02-02/Cargo.toml Executable file
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@ -0,0 +1,9 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.3"

15
listings/ch02-guessing-game-tutorial/listing-02-02/src/main.rs Executable file
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@ -0,0 +1,15 @@
use std::io;
fn main() {
println!("Guess the number!");
println!("Please input your guess.");
let mut guess = String::new();
io::stdin()
.read_line(&mut guess)
.expect("Failed to read line");
println!("You guessed: {}", guess);
}

83
listings/ch02-guessing-game-tutorial/listing-02-03/Cargo.lock generated Executable file
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@ -0,0 +1,83 @@
# This file is automatically @generated by Cargo.
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version = "0.1.0"
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9
listings/ch02-guessing-game-tutorial/listing-02-03/Cargo.toml Executable file
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[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.3"

28
listings/ch02-guessing-game-tutorial/listing-02-03/src/main.rs Executable file
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@ -0,0 +1,28 @@
// ANCHOR: all
use std::io;
// ANCHOR: ch07-04
use rand::Rng;
fn main() {
// ANCHOR_END: ch07-04
println!("Guess the number!");
// ANCHOR: ch07-04
let secret_number = rand::thread_rng().gen_range(1..101);
// ANCHOR_END: ch07-04
println!("The secret number is: {}", secret_number);
println!("Please input your guess.");
let mut guess = String::new();
io::stdin()
.read_line(&mut guess)
.expect("Failed to read line");
println!("You guessed: {}", guess);
// ANCHOR: ch07-04
}
// ANCHOR_END: ch07-04
// ANCHOR_END: all

83
listings/ch02-guessing-game-tutorial/listing-02-04/Cargo.lock generated Executable file
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# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "cfg-if"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
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dependencies = [
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"libc",
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[[package]]
name = "guessing_game"
version = "0.1.0"
dependencies = [
"rand",
]
[[package]]
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version = "0.2.86"
source = "registry+https://github.com/rust-lang/crates.io-index"
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"rand_hc",
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dependencies = [
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9
listings/ch02-guessing-game-tutorial/listing-02-04/Cargo.toml Executable file
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@ -0,0 +1,9 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.3"

45
listings/ch02-guessing-game-tutorial/listing-02-04/output.txt Executable file
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@ -0,0 +1,45 @@
$ cargo build
Compiling libc v0.2.86
Compiling getrandom v0.2.2
Compiling cfg-if v1.0.0
Compiling ppv-lite86 v0.2.10
Compiling rand_core v0.6.2
Compiling rand_chacha v0.3.0
Compiling rand v0.8.3
Compiling guessing_game v0.1.0 (file:///projects/guessing_game)
error[E0308]: mismatched types
--> src/main.rs:22:21
|
22 | match guess.cmp(&secret_number) {
| ^^^^^^^^^^^^^^ expected struct `String`, found integer
|
= note: expected reference `&String`
found reference `&{integer}`
error[E0283]: type annotations needed for `{integer}`
--> src/main.rs:8:44
|
8 | let secret_number = rand::thread_rng().gen_range(1..101);
| ------------- ^^^^^^^^^ cannot infer type for type `{integer}`
| |
| consider giving `secret_number` a type
|
= note: multiple `impl`s satisfying `{integer}: SampleUniform` found in the `rand` crate:
- impl SampleUniform for i128;
- impl SampleUniform for i16;
- impl SampleUniform for i32;
- impl SampleUniform for i64;
and 8 more
note: required by a bound in `gen_range`
--> /Users/carolnichols/.cargo/registry/src/github.com-1ecc6299db9ec823/rand-0.8.3/src/rng.rs:129:12
|
129 | T: SampleUniform,
| ^^^^^^^^^^^^^ required by this bound in `gen_range`
help: consider specifying the type arguments in the function call
|
8 | let secret_number = rand::thread_rng().gen_range::<T, R>(1..101);
| ++++++++
Some errors have detailed explanations: E0283, E0308.
For more information about an error, try `rustc --explain E0283`.
error: could not compile `guessing_game` due to 2 previous errors

32
listings/ch02-guessing-game-tutorial/listing-02-04/src/main.rs Executable file
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// ANCHOR: here
use rand::Rng;
use std::cmp::Ordering;
use std::io;
fn main() {
// --snip--
// ANCHOR_END: here
println!("Guess the number!");
let secret_number = rand::thread_rng().gen_range(1..101);
println!("The secret number is: {}", secret_number);
println!("Please input your guess.");
let mut guess = String::new();
io::stdin()
.read_line(&mut guess)
.expect("Failed to read line");
// ANCHOR: here
println!("You guessed: {}", guess);
match guess.cmp(&secret_number) {
Ordering::Less => println!("Too small!"),
Ordering::Greater => println!("Too big!"),
Ordering::Equal => println!("You win!"),
}
}
// ANCHOR_END: here

83
listings/ch02-guessing-game-tutorial/listing-02-05/Cargo.lock generated Executable file
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[[package]]
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version = "0.1.0"
dependencies = [
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9
listings/ch02-guessing-game-tutorial/listing-02-05/Cargo.toml Executable file
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@ -0,0 +1,9 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.3"

45
listings/ch02-guessing-game-tutorial/listing-02-05/src/main.rs Executable file
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@ -0,0 +1,45 @@
use rand::Rng;
use std::cmp::Ordering;
use std::io;
fn main() {
println!("Guess the number!");
let secret_number = rand::thread_rng().gen_range(1..101);
println!("The secret number is: {}", secret_number);
loop {
println!("Please input your guess.");
let mut guess = String::new();
// ANCHOR: here
// --snip--
io::stdin()
.read_line(&mut guess)
.expect("Failed to read line");
// ANCHOR: ch19
let guess: u32 = match guess.trim().parse() {
Ok(num) => num,
Err(_) => continue,
};
// ANCHOR_END: ch19
println!("You guessed: {}", guess);
// --snip--
// ANCHOR_END: here
match guess.cmp(&secret_number) {
Ordering::Less => println!("Too small!"),
Ordering::Greater => println!("Too big!"),
Ordering::Equal => {
println!("You win!");
break;
}
}
}
}

83
listings/ch02-guessing-game-tutorial/listing-02-06/Cargo.lock generated Executable file
View File

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checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"

9
listings/ch02-guessing-game-tutorial/listing-02-06/Cargo.toml Executable file
View File

@ -0,0 +1,9 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.3"

35
listings/ch02-guessing-game-tutorial/listing-02-06/src/main.rs Executable file
View File

@ -0,0 +1,35 @@
use rand::Rng;
use std::cmp::Ordering;
use std::io;
fn main() {
println!("Guess the number!");
let secret_number = rand::thread_rng().gen_range(1..101);
loop {
println!("Please input your guess.");
let mut guess = String::new();
io::stdin()
.read_line(&mut guess)
.expect("Failed to read line");
let guess: u32 = match guess.trim().parse() {
Ok(num) => num,
Err(_) => continue,
};
println!("You guessed: {}", guess);
match guess.cmp(&secret_number) {
Ordering::Less => println!("Too small!"),
Ordering::Greater => println!("Too big!"),
Ordering::Equal => {
println!("You win!");
break;
}
}
}
}

6
listings/ch02-guessing-game-tutorial/no-listing-01-cargo-new/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "guessing_game"
version = "0.1.0"

8
listings/ch02-guessing-game-tutorial/no-listing-01-cargo-new/Cargo.toml Executable file
View File

@ -0,0 +1,8 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]

5
listings/ch02-guessing-game-tutorial/no-listing-01-cargo-new/output.txt Executable file
View File

@ -0,0 +1,5 @@
$ cargo run
Compiling guessing_game v0.1.0 (file:///projects/guessing_game)
Finished dev [unoptimized + debuginfo] target(s) in 1.50s
Running `target/debug/guessing_game`
Hello, world!

3
listings/ch02-guessing-game-tutorial/no-listing-01-cargo-new/src/main.rs Executable file
View File

@ -0,0 +1,3 @@
fn main() {
println!("Hello, world!");
}

6
listings/ch02-guessing-game-tutorial/no-listing-02-without-expect/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "guessing_game"
version = "0.1.0"

8
listings/ch02-guessing-game-tutorial/no-listing-02-without-expect/Cargo.toml Executable file
View File

@ -0,0 +1,8 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]

13
listings/ch02-guessing-game-tutorial/no-listing-02-without-expect/output.txt Executable file
View File

@ -0,0 +1,13 @@
$ cargo build
Compiling guessing_game v0.1.0 (file:///projects/guessing_game)
warning: unused `Result` that must be used
--> src/main.rs:10:5
|
10 | io::stdin().read_line(&mut guess);
| ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
|
= note: `#[warn(unused_must_use)]` on by default
= note: this `Result` may be an `Err` variant, which should be handled
warning: `guessing_game` (bin "guessing_game") generated 1 warning
Finished dev [unoptimized + debuginfo] target(s) in 0.59s

13
listings/ch02-guessing-game-tutorial/no-listing-02-without-expect/src/main.rs Executable file
View File

@ -0,0 +1,13 @@
use std::io;
fn main() {
println!("Guess the number!");
println!("Please input your guess.");
let mut guess = String::new();
io::stdin().read_line(&mut guess);
println!("You guessed: {}", guess);
}

83
listings/ch02-guessing-game-tutorial/no-listing-03-convert-string-to-number/Cargo.lock generated Executable file
View File

@ -0,0 +1,83 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "cfg-if"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
[[package]]
name = "getrandom"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
dependencies = [
"cfg-if",
"libc",
"wasi",
]
[[package]]
name = "guessing_game"
version = "0.1.0"
dependencies = [
"rand",
]
[[package]]
name = "libc"
version = "0.2.86"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b7282d924be3275cec7f6756ff4121987bc6481325397dde6ba3e7802b1a8b1c"
[[package]]
name = "ppv-lite86"
version = "0.2.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
[[package]]
name = "rand"
version = "0.8.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0ef9e7e66b4468674bfcb0c81af8b7fa0bb154fa9f28eb840da5c447baeb8d7e"
dependencies = [
"libc",
"rand_chacha",
"rand_core",
"rand_hc",
]
[[package]]
name = "rand_chacha"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
dependencies = [
"ppv-lite86",
"rand_core",
]
[[package]]
name = "rand_core"
version = "0.6.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "34cf66eb183df1c5876e2dcf6b13d57340741e8dc255b48e40a26de954d06ae7"
dependencies = [
"getrandom",
]
[[package]]
name = "rand_hc"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3190ef7066a446f2e7f42e239d161e905420ccab01eb967c9eb27d21b2322a73"
dependencies = [
"rand_core",
]
[[package]]
name = "wasi"
version = "0.10.2+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"

9
listings/ch02-guessing-game-tutorial/no-listing-03-convert-string-to-number/Cargo.toml Executable file
View File

@ -0,0 +1,9 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.3"

33
listings/ch02-guessing-game-tutorial/no-listing-03-convert-string-to-number/src/main.rs Executable file
View File

@ -0,0 +1,33 @@
use rand::Rng;
use std::cmp::Ordering;
use std::io;
fn main() {
println!("Guess the number!");
let secret_number = rand::thread_rng().gen_range(1..101);
println!("The secret number is: {}", secret_number);
println!("Please input your guess.");
// ANCHOR: here
// --snip--
let mut guess = String::new();
io::stdin()
.read_line(&mut guess)
.expect("Failed to read line");
let guess: u32 = guess.trim().parse().expect("Please type a number!");
println!("You guessed: {}", guess);
match guess.cmp(&secret_number) {
Ordering::Less => println!("Too small!"),
Ordering::Greater => println!("Too big!"),
Ordering::Equal => println!("You win!"),
}
// ANCHOR_END: here
}

83
listings/ch02-guessing-game-tutorial/no-listing-04-looping/Cargo.lock generated Executable file
View File

@ -0,0 +1,83 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "cfg-if"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
[[package]]
name = "getrandom"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
dependencies = [
"cfg-if",
"libc",
"wasi",
]
[[package]]
name = "guessing_game"
version = "0.1.0"
dependencies = [
"rand",
]
[[package]]
name = "libc"
version = "0.2.86"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b7282d924be3275cec7f6756ff4121987bc6481325397dde6ba3e7802b1a8b1c"
[[package]]
name = "ppv-lite86"
version = "0.2.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
[[package]]
name = "rand"
version = "0.8.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0ef9e7e66b4468674bfcb0c81af8b7fa0bb154fa9f28eb840da5c447baeb8d7e"
dependencies = [
"libc",
"rand_chacha",
"rand_core",
"rand_hc",
]
[[package]]
name = "rand_chacha"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
dependencies = [
"ppv-lite86",
"rand_core",
]
[[package]]
name = "rand_core"
version = "0.6.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "34cf66eb183df1c5876e2dcf6b13d57340741e8dc255b48e40a26de954d06ae7"
dependencies = [
"getrandom",
]
[[package]]
name = "rand_hc"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3190ef7066a446f2e7f42e239d161e905420ccab01eb967c9eb27d21b2322a73"
dependencies = [
"rand_core",
]
[[package]]
name = "wasi"
version = "0.10.2+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"

9
listings/ch02-guessing-game-tutorial/no-listing-04-looping/Cargo.toml Executable file
View File

@ -0,0 +1,9 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.3"

40
listings/ch02-guessing-game-tutorial/no-listing-04-looping/src/main.rs Executable file
View File

@ -0,0 +1,40 @@
use rand::Rng;
use std::cmp::Ordering;
use std::io;
fn main() {
println!("Guess the number!");
let secret_number = rand::thread_rng().gen_range(1..101);
// ANCHOR: here
// --snip--
println!("The secret number is: {}", secret_number);
loop {
println!("Please input your guess.");
// --snip--
// ANCHOR_END: here
let mut guess = String::new();
io::stdin()
.read_line(&mut guess)
.expect("Failed to read line");
let guess: u32 = guess.trim().parse().expect("Please type a number!");
println!("You guessed: {}", guess);
// ANCHOR: here
match guess.cmp(&secret_number) {
Ordering::Less => println!("Too small!"),
Ordering::Greater => println!("Too big!"),
Ordering::Equal => println!("You win!"),
}
}
}
// ANCHOR_END: here

83
listings/ch02-guessing-game-tutorial/no-listing-05-quitting/Cargo.lock generated Executable file
View File

@ -0,0 +1,83 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "cfg-if"
version = "1.0.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "baf1de4339761588bc0619e3cbc0120ee582ebb74b53b4efbf79117bd2da40fd"
[[package]]
name = "getrandom"
version = "0.2.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "c9495705279e7140bf035dde1f6e750c162df8b625267cd52cc44e0b156732c8"
dependencies = [
"cfg-if",
"libc",
"wasi",
]
[[package]]
name = "guessing_game"
version = "0.1.0"
dependencies = [
"rand",
]
[[package]]
name = "libc"
version = "0.2.86"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "b7282d924be3275cec7f6756ff4121987bc6481325397dde6ba3e7802b1a8b1c"
[[package]]
name = "ppv-lite86"
version = "0.2.10"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "ac74c624d6b2d21f425f752262f42188365d7b8ff1aff74c82e45136510a4857"
[[package]]
name = "rand"
version = "0.8.3"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "0ef9e7e66b4468674bfcb0c81af8b7fa0bb154fa9f28eb840da5c447baeb8d7e"
dependencies = [
"libc",
"rand_chacha",
"rand_core",
"rand_hc",
]
[[package]]
name = "rand_chacha"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "e12735cf05c9e10bf21534da50a147b924d555dc7a547c42e6bb2d5b6017ae0d"
dependencies = [
"ppv-lite86",
"rand_core",
]
[[package]]
name = "rand_core"
version = "0.6.2"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "34cf66eb183df1c5876e2dcf6b13d57340741e8dc255b48e40a26de954d06ae7"
dependencies = [
"getrandom",
]
[[package]]
name = "rand_hc"
version = "0.3.0"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "3190ef7066a446f2e7f42e239d161e905420ccab01eb967c9eb27d21b2322a73"
dependencies = [
"rand_core",
]
[[package]]
name = "wasi"
version = "0.10.2+wasi-snapshot-preview1"
source = "registry+https://github.com/rust-lang/crates.io-index"
checksum = "fd6fbd9a79829dd1ad0cc20627bf1ed606756a7f77edff7b66b7064f9cb327c6"

9
listings/ch02-guessing-game-tutorial/no-listing-05-quitting/Cargo.toml Executable file
View File

@ -0,0 +1,9 @@
[package]
name = "guessing_game"
version = "0.1.0"
edition = "2021"
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
[dependencies]
rand = "0.8.3"

38
listings/ch02-guessing-game-tutorial/no-listing-05-quitting/src/main.rs Executable file
View File

@ -0,0 +1,38 @@
use rand::Rng;
use std::cmp::Ordering;
use std::io;
fn main() {
println!("Guess the number!");
let secret_number = rand::thread_rng().gen_range(1..101);
println!("The secret number is: {}", secret_number);
loop {
println!("Please input your guess.");
let mut guess = String::new();
io::stdin()
.read_line(&mut guess)
.expect("Failed to read line");
let guess: u32 = guess.trim().parse().expect("Please type a number!");
println!("You guessed: {}", guess);
// ANCHOR: here
// --snip--
match guess.cmp(&secret_number) {
Ordering::Less => println!("Too small!"),
Ordering::Greater => println!("Too big!"),
Ordering::Equal => {
println!("You win!");
break;
}
}
}
}
// ANCHOR_END: here

6
listings/ch03-common-programming-concepts/listing-03-01/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "functions"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/listing-03-01/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "functions"
version = "0.1.0"
edition = "2021"
[dependencies]

3
listings/ch03-common-programming-concepts/listing-03-01/src/main.rs Executable file
View File

@ -0,0 +1,3 @@
fn main() {
let y = 6;
}

6
listings/ch03-common-programming-concepts/listing-03-02/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "branches"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/listing-03-02/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "branches"
version = "0.1.0"
edition = "2021"
[dependencies]

5
listings/ch03-common-programming-concepts/listing-03-02/output.txt Executable file
View File

@ -0,0 +1,5 @@
$ cargo run
Compiling branches v0.1.0 (file:///projects/branches)
Finished dev [unoptimized + debuginfo] target(s) in 0.30s
Running `target/debug/branches`
The value of number is: 5

6
listings/ch03-common-programming-concepts/listing-03-02/src/main.rs Executable file
View File

@ -0,0 +1,6 @@
fn main() {
let condition = true;
let number = if condition { 5 } else { 6 };
println!("The value of number is: {}", number);
}

6
listings/ch03-common-programming-concepts/listing-03-03/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "loops"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/listing-03-03/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "loops"
version = "0.1.0"
edition = "2021"
[dependencies]

11
listings/ch03-common-programming-concepts/listing-03-03/src/main.rs Executable file
View File

@ -0,0 +1,11 @@
fn main() {
let mut number = 3;
while number != 0 {
println!("{}!", number);
number -= 1;
}
println!("LIFTOFF!!!");
}

6
listings/ch03-common-programming-concepts/listing-03-04/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "loops"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/listing-03-04/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "loops"
version = "0.1.0"
edition = "2021"
[dependencies]

9
listings/ch03-common-programming-concepts/listing-03-04/output.txt Executable file
View File

@ -0,0 +1,9 @@
$ cargo run
Compiling loops v0.1.0 (file:///projects/loops)
Finished dev [unoptimized + debuginfo] target(s) in 0.32s
Running `target/debug/loops`
the value is: 10
the value is: 20
the value is: 30
the value is: 40
the value is: 50

10
listings/ch03-common-programming-concepts/listing-03-04/src/main.rs Executable file
View File

@ -0,0 +1,10 @@
fn main() {
let a = [10, 20, 30, 40, 50];
let mut index = 0;
while index < 5 {
println!("the value is: {}", a[index]);
index += 1;
}
}

6
listings/ch03-common-programming-concepts/listing-03-05/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "loops"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/listing-03-05/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "loops"
version = "0.1.0"
edition = "2021"
[dependencies]

7
listings/ch03-common-programming-concepts/listing-03-05/src/main.rs Executable file
View File

@ -0,0 +1,7 @@
fn main() {
let a = [10, 20, 30, 40, 50];
for element in a {
println!("the value is: {}", element);
}
}

6
listings/ch03-common-programming-concepts/no-listing-01-variables-are-immutable/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "variables"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-01-variables-are-immutable/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "variables"
version = "0.1.0"
edition = "2021"
[dependencies]

16
listings/ch03-common-programming-concepts/no-listing-01-variables-are-immutable/output.txt Executable file
View File

@ -0,0 +1,16 @@
$ cargo run
Compiling variables v0.1.0 (file:///projects/variables)
error[E0384]: cannot assign twice to immutable variable `x`
--> src/main.rs:4:5
|
2 | let x = 5;
| -
| |
| first assignment to `x`
| help: consider making this binding mutable: `mut x`
3 | println!("The value of x is: {}", x);
4 | x = 6;
| ^^^^^ cannot assign twice to immutable variable
For more information about this error, try `rustc --explain E0384`.
error: could not compile `variables` due to previous error

6
listings/ch03-common-programming-concepts/no-listing-01-variables-are-immutable/src/main.rs Executable file
View File

@ -0,0 +1,6 @@
fn main() {
let x = 5;
println!("The value of x is: {}", x);
x = 6;
println!("The value of x is: {}", x);
}

6
listings/ch03-common-programming-concepts/no-listing-02-adding-mut/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "variables"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-02-adding-mut/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "variables"
version = "0.1.0"
edition = "2021"
[dependencies]

6
listings/ch03-common-programming-concepts/no-listing-02-adding-mut/output.txt Executable file
View File

@ -0,0 +1,6 @@
$ cargo run
Compiling variables v0.1.0 (file:///projects/variables)
Finished dev [unoptimized + debuginfo] target(s) in 0.30s
Running `target/debug/variables`
The value of x is: 5
The value of x is: 6

6
listings/ch03-common-programming-concepts/no-listing-02-adding-mut/src/main.rs Executable file
View File

@ -0,0 +1,6 @@
fn main() {
let mut x = 5;
println!("The value of x is: {}", x);
x = 6;
println!("The value of x is: {}", x);
}

6
listings/ch03-common-programming-concepts/no-listing-03-shadowing/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "variables"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-03-shadowing/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "variables"
version = "0.1.0"
edition = "2021"
[dependencies]

6
listings/ch03-common-programming-concepts/no-listing-03-shadowing/output.txt Executable file
View File

@ -0,0 +1,6 @@
$ cargo run
Compiling variables v0.1.0 (file:///projects/variables)
Finished dev [unoptimized + debuginfo] target(s) in 0.31s
Running `target/debug/variables`
The value of x in the inner scope is: 12
The value of x is: 6

12
listings/ch03-common-programming-concepts/no-listing-03-shadowing/src/main.rs Executable file
View File

@ -0,0 +1,12 @@
fn main() {
let x = 5;
let x = x + 1;
{
let x = x * 2;
println!("The value of x in the inner scope is: {}", x);
}
println!("The value of x is: {}", x);
}

6
listings/ch03-common-programming-concepts/no-listing-04-shadowing-can-change-types/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "variables"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-04-shadowing-can-change-types/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "variables"
version = "0.1.0"
edition = "2021"
[dependencies]

6
listings/ch03-common-programming-concepts/no-listing-04-shadowing-can-change-types/src/main.rs Executable file
View File

@ -0,0 +1,6 @@
fn main() {
// ANCHOR: here
let spaces = " ";
let spaces = spaces.len();
// ANCHOR_END: here
}

6
listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "variables"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "variables"
version = "0.1.0"
edition = "2021"
[dependencies]

12
listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/output.txt Executable file
View File

@ -0,0 +1,12 @@
$ cargo run
Compiling variables v0.1.0 (file:///projects/variables)
error[E0308]: mismatched types
--> src/main.rs:3:14
|
2 | let mut spaces = " ";
| ----- expected due to this value
3 | spaces = spaces.len();
| ^^^^^^^^^^^^ expected `&str`, found `usize`
For more information about this error, try `rustc --explain E0308`.
error: could not compile `variables` due to previous error

6
listings/ch03-common-programming-concepts/no-listing-05-mut-cant-change-types/src/main.rs Executable file
View File

@ -0,0 +1,6 @@
fn main() {
// ANCHOR: here
let mut spaces = " ";
spaces = spaces.len();
// ANCHOR_END: here
}

6
listings/ch03-common-programming-concepts/no-listing-06-floating-point/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "floating-point"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-06-floating-point/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "floating-point"
version = "0.1.0"
edition = "2021"
[dependencies]

5
listings/ch03-common-programming-concepts/no-listing-06-floating-point/src/main.rs Executable file
View File

@ -0,0 +1,5 @@
fn main() {
let x = 2.0; // f64
let y: f32 = 3.0; // f32
}

6
listings/ch03-common-programming-concepts/no-listing-07-numeric-operations/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "numeric-operations"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-07-numeric-operations/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "numeric-operations"
version = "0.1.0"
edition = "2021"
[dependencies]

17
listings/ch03-common-programming-concepts/no-listing-07-numeric-operations/src/main.rs Executable file
View File

@ -0,0 +1,17 @@
fn main() {
// addition
let sum = 5 + 10;
// subtraction
let difference = 95.5 - 4.3;
// multiplication
let product = 4 * 30;
// division
let quotient = 56.7 / 32.2;
let floored = 2 / 3; // Results in 0
// remainder
let remainder = 43 % 5;
}

6
listings/ch03-common-programming-concepts/no-listing-08-boolean/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "boolean"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-08-boolean/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "boolean"
version = "0.1.0"
edition = "2021"
[dependencies]

5
listings/ch03-common-programming-concepts/no-listing-08-boolean/src/main.rs Executable file
View File

@ -0,0 +1,5 @@
fn main() {
let t = true;
let f: bool = false; // with explicit type annotation
}

6
listings/ch03-common-programming-concepts/no-listing-09-char/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "char"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-09-char/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "char"
version = "0.1.0"
edition = "2021"
[dependencies]

5
listings/ch03-common-programming-concepts/no-listing-09-char/src/main.rs Executable file
View File

@ -0,0 +1,5 @@
fn main() {
let c = 'z';
let z = 'ℤ';
let heart_eyed_cat = '😻';
}

6
listings/ch03-common-programming-concepts/no-listing-10-tuples/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "tuples"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-10-tuples/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "tuples"
version = "0.1.0"
edition = "2021"
[dependencies]

3
listings/ch03-common-programming-concepts/no-listing-10-tuples/src/main.rs Executable file
View File

@ -0,0 +1,3 @@
fn main() {
let tup: (i32, f64, u8) = (500, 6.4, 1);
}

6
listings/ch03-common-programming-concepts/no-listing-11-destructuring-tuples/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "tuples"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-11-destructuring-tuples/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "tuples"
version = "0.1.0"
edition = "2021"
[dependencies]

7
listings/ch03-common-programming-concepts/no-listing-11-destructuring-tuples/src/main.rs Executable file
View File

@ -0,0 +1,7 @@
fn main() {
let tup = (500, 6.4, 1);
let (x, y, z) = tup;
println!("The value of y is: {}", y);
}

6
listings/ch03-common-programming-concepts/no-listing-12-tuple-indexing/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "tuples"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-12-tuple-indexing/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "tuples"
version = "0.1.0"
edition = "2021"
[dependencies]

9
listings/ch03-common-programming-concepts/no-listing-12-tuple-indexing/src/main.rs Executable file
View File

@ -0,0 +1,9 @@
fn main() {
let x: (i32, f64, u8) = (500, 6.4, 1);
let five_hundred = x.0;
let six_point_four = x.1;
let one = x.2;
}

6
listings/ch03-common-programming-concepts/no-listing-13-arrays/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "arrays"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-13-arrays/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "arrays"
version = "0.1.0"
edition = "2021"
[dependencies]

3
listings/ch03-common-programming-concepts/no-listing-13-arrays/src/main.rs Executable file
View File

@ -0,0 +1,3 @@
fn main() {
let a = [1, 2, 3, 4, 5];
}

6
listings/ch03-common-programming-concepts/no-listing-14-array-indexing/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "arrays"
version = "0.1.0"

6
listings/ch03-common-programming-concepts/no-listing-14-array-indexing/Cargo.toml Executable file
View File

@ -0,0 +1,6 @@
[package]
name = "arrays"
version = "0.1.0"
edition = "2021"
[dependencies]

6
listings/ch03-common-programming-concepts/no-listing-14-array-indexing/src/main.rs Executable file
View File

@ -0,0 +1,6 @@
fn main() {
let a = [1, 2, 3, 4, 5];
let first = a[0];
let second = a[1];
}

6
listings/ch03-common-programming-concepts/no-listing-15-invalid-array-access/Cargo.lock generated Executable file
View File

@ -0,0 +1,6 @@
# This file is automatically @generated by Cargo.
# It is not intended for manual editing.
[[package]]
name = "arrays"
version = "0.1.0"

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