address clippy lints (#55)

Author: danieleades

examples/concatenated.rs

@@ -1,4 +1,3 @@
-#![feature(exclusive_range_pattern)]
 #![feature(never_type)]
 
 use arithmetic_coding::{Decoder, Encoder, Model};

examples/fixed_length.rs

@@ -1,4 +1,3 @@
-#![feature(exclusive_range_pattern)]
 #![feature(never_type)]
 
 use std::ops::Range;

examples/integer.rs

@@ -1,5 +1,3 @@
-#![feature(exclusive_range_pattern)]
-
 use std::ops::Range;
 
 use arithmetic_coding::Model;

examples/max_length.rs

@@ -1,4 +1,3 @@
-#![feature(exclusive_range_pattern)]
 #![feature(never_type)]
 
 use std::ops::Range;

examples/sherlock.rs

@@ -14,7 +14,7 @@ pub struct StringModel {
 
 impl StringModel {
     #[must_use]
-    pub fn new(alphabet: Vec<char>) -> Self {
+    pub const fn new(alphabet: Vec<char>) -> Self {
         Self { alphabet }
     }
 }

examples/symbolic.rs

@@ -1,4 +1,3 @@
-#![feature(exclusive_range_pattern)]
 #![feature(never_type)]
 
 use std::ops::Range;

src/decoder.rs

@@ -239,11 +239,8 @@ where
                 self.x = (self.x - self.half()) << 1;
             }
 
-            match self.input.next_bit()? {
-                Some(true) => {
-                    self.x += B::ONE;
-                }
-                Some(false) | None => (),
+            if self.input.next_bit()? == Some(true) {
+                self.x += B::ONE;
             }
         }
 
@@ -252,11 +249,8 @@ where
             self.high = (self.high - self.quarter()) << 1;
             self.x = (self.x - self.quarter()) << 1;
 
-            match self.input.next_bit()? {
-                Some(true) => {
-                    self.x += B::ONE;
-                }
-                Some(false) | None => (),
+            if self.input.next_bit()? == Some(true) {
+                self.x += B::ONE;
             }
         }
 
@@ -280,11 +274,8 @@ where
     fn fill(&mut self) -> io::Result<()> {
         for _ in 0..self.precision {
             self.x <<= 1;
-            match self.input.next_bit()? {
-                Some(true) => {
-                    self.x += B::ONE;
-                }
-                Some(false) | None => (),
+            if self.input.next_bit()? == Some(true) {
+                self.x += B::ONE;
             }
         }
         Ok(())

tests/concatenated.rs

@@ -1,4 +1,3 @@
-#![feature(exclusive_range_pattern)]
 #![feature(never_type)]
 
 use arithmetic_coding::{Decoder, Encoder, Model};

tests/fixed_length.rs

@@ -1,4 +1,3 @@
-#![feature(exclusive_range_pattern)]
 #![feature(never_type)]
 
 use std::ops::Range;

tests/max_length.rs

@@ -1,4 +1,3 @@
-#![feature(exclusive_range_pattern)]
 #![feature(never_type)]
 
 use std::ops::Range;