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Merge branch 'main' of https://github.com/rust-lang/rustlings

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This commit is contained in:
Leonardo Freua 2021-12-23 22:57:21 -03:00
commit 5e7eac6be6
4 changed files with 43 additions and 16 deletions
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18
.all-contributorsrc
View File

@ -1038,6 +1038,24 @@
"contributions": [
"code"
]
},
{
"login": "alirezaghey",
"name": "alirezaghey",
"avatar_url": "https://avatars.githubusercontent.com/u/26653424?v=4",
"profile": "https://github.com/alirezaghey",
"contributions": [
"content"
]
},
{
"login": "frvannes16",
"name": "Franklin van Nes",
"avatar_url": "https://avatars.githubusercontent.com/u/3188475?v=4",
"profile": "https://github.com/frvannes16",
"contributions": [
"code"
]
}
],
"contributorsPerLine": 8,

6
README.md
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@ -1,5 +1,5 @@
<!-- ALL-CONTRIBUTORS-BADGE:START - Do not remove or modify this section -->
[![All Contributors](https://img.shields.io/badge/all_contributors-112-orange.svg?style=flat-square)](#contributors-)
[![All Contributors](https://img.shields.io/badge/all_contributors-114-orange.svg?style=flat-square)](#contributors-)
<!-- ALL-CONTRIBUTORS-BADGE:END -->
# rustlings 🦀❤️
@ -317,6 +317,10 @@ Thanks goes to these wonderful people ([emoji key](https://allcontributors.org/d
<td align="center"><a href="http://xuesong.pydevops.com"><img src="https://avatars.githubusercontent.com/u/18476085?v=4?s=100" width="100px;" alt=""/><br /><sub><b>xuesong</b></sub></a><br /><a href="#content-xuesongbj" title="Content">🖋</a></td>
<td align="center"><a href="https://github.com/MpdWalsh"><img src="https://avatars.githubusercontent.com/u/48160144?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Michael Walsh</b></sub></a><br /><a href="https://github.com/rust-lang/rustlings/commits?author=MpdWalsh" title="Code">💻</a></td>
</tr>
<tr>
<td align="center"><a href="https://github.com/alirezaghey"><img src="https://avatars.githubusercontent.com/u/26653424?v=4?s=100" width="100px;" alt=""/><br /><sub><b>alirezaghey</b></sub></a><br /><a href="#content-alirezaghey" title="Content">🖋</a></td>
<td align="center"><a href="https://github.com/frvannes16"><img src="https://avatars.githubusercontent.com/u/3188475?v=4?s=100" width="100px;" alt=""/><br /><sub><b>Franklin van Nes</b></sub></a><br /><a href="https://github.com/rust-lang/rustlings/commits?author=frvannes16" title="Code">💻</a></td>
</tr>
</table>
<!-- markdownlint-restore -->

16
exercises/clippy/clippy1.rs
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@ -8,10 +8,16 @@
// I AM NOT DONE
use std::f32;
fn main() {
let x = 1.2331f64;
let y = 1.2332f64;
if y != x {
println!("Success!");
}
let pi = 3.14f32;
let radius = 5.00f32;
let area = pi * f32::powi(radius, 2);
println!(
"The area of a circle with radius {:.2} is {:.5}!",
radius, area
)
}

19
info.toml
View File

@ -114,8 +114,7 @@ path = "exercises/functions/functions5.rs"
mode = "compile"
hint = """
This is a really common error that can be fixed by removing one character.
It happens because Rust distinguishes between expressions and statements: expressions return
a value based on its operand, and statements simply return a () type which behaves just like `void` in C/C++ language.
It happens because Rust distinguishes between expressions and statements: expressions return a value based on their operand(s), and statements simply return a () type which behaves just like `void` in C/C++ language.
We want to return a value of `i32` type from the `square` function, but it is returning a `()` type...
They are not the same. There are two solutions:
1. Add a `return` ahead of `num * num;`
@ -907,15 +906,15 @@ name = "clippy1"
path = "exercises/clippy/clippy1.rs"
mode = "clippy"
hint = """
Not every floating point value can be represented exactly in binary values in
memory. Take a look at the description of
https://doc.rust-lang.org/stable/std/primitive.f32.html
When using the binary compare operators with floating points you won't compare
the floating point values but the binary representation in memory. This is
usually not what you would like to do.
Rust stores the highest precision version of any long or inifinite precision
mathematical constants in the rust standard library.
https://doc.rust-lang.org/stable/std/f32/consts/index.html
We may be tempted to use our own approximations for certain mathematical constants,
but clippy recognizes those imprecise mathematical constants as a source of
potential error.
See the suggestions of the clippy warning in compile output and use the
machine epsilon value...
https://doc.rust-lang.org/stable/std/primitive.f32.html#associatedconstant.EPSILON"""
appropriate replacement constant from std::f32::consts..."""
[[exercises]]
name = "clippy2"