From 78728d52387730300475cbe8c83497f603a14faf Mon Sep 17 00:00:00 2001
From: mo8it <mo8it@proton.me>
Date: Mon, 1 Jul 2024 11:54:35 +0200
Subject: [PATCH] clippy1 solution

---
 exercises/22_clippy/clippy1.rs | 16 +++++++---------
 rustlings-macros/info.toml     |  4 ++--
 solutions/22_clippy/clippy1.rs | 18 +++++++++++++++++-
 3 files changed, 26 insertions(+), 12 deletions(-)

diff --git a/exercises/22_clippy/clippy1.rs b/exercises/22_clippy/clippy1.rs
index f1eaa831..b9d1ec17 100644
--- a/exercises/22_clippy/clippy1.rs
+++ b/exercises/22_clippy/clippy1.rs
@@ -1,19 +1,17 @@
 // The Clippy tool is a collection of lints to analyze your code so you can
 // catch common mistakes and improve your Rust code.
 //
-// For these exercises the code will fail to compile when there are Clippy
+// For these exercises, the code will fail to compile when there are Clippy
 // warnings. Check Clippy's suggestions from the output to solve the exercise.
 
-use std::f32;
+use std::f32::consts::PI;
 
 fn main() {
-    let pi = 3.14f32;
-    let radius = 5.00f32;
+    // Use the more accurate `PI` constant.
+    let pi = PI;
+    let radius: f32 = 5.0;
 
-    let area = pi * f32::powi(radius, 2);
+    let area = pi * radius.powi(2);
 
-    println!(
-        "The area of a circle with radius {:.2} is {:.5}!",
-        radius, area
-    )
+    println!("The area of a circle with radius {radius:.2} is {area:.5}");
 }
diff --git a/rustlings-macros/info.toml b/rustlings-macros/info.toml
index 0ec5fb21..4d40726e 100644
--- a/rustlings-macros/info.toml
+++ b/rustlings-macros/info.toml
@@ -1134,7 +1134,7 @@ dir = "22_clippy"
 test = false
 strict_clippy = true
 hint = """
-Rust stores the highest precision version of any long or infinite precision
+Rust stores the highest precision version of some long or infinite precision
 mathematical constants in the Rust standard library:
 https://doc.rust-lang.org/stable/std/f32/consts/index.html
 
@@ -1142,7 +1142,7 @@ 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
+See the suggestions of the Clippy warning in the compile output and use the
 appropriate replacement constant from `std::f32::consts`..."""
 
 [[exercises]]
diff --git a/solutions/22_clippy/clippy1.rs b/solutions/22_clippy/clippy1.rs
index 4e181989..b9d1ec17 100644
--- a/solutions/22_clippy/clippy1.rs
+++ b/solutions/22_clippy/clippy1.rs
@@ -1 +1,17 @@
-// Solutions will be available before the stable release. Thank you for testing the beta version 🥰
+// The Clippy tool is a collection of lints to analyze your code so you can
+// catch common mistakes and improve your Rust code.
+//
+// For these exercises, the code will fail to compile when there are Clippy
+// warnings. Check Clippy's suggestions from the output to solve the exercise.
+
+use std::f32::consts::PI;
+
+fn main() {
+    // Use the more accurate `PI` constant.
+    let pi = PI;
+    let radius: f32 = 5.0;
+
+    let area = pi * radius.powi(2);
+
+    println!("The area of a circle with radius {radius:.2} is {area:.5}");
+}