From c81d5e091b7944d3032997d99901a81d7e9eb508 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=98=93=E6=98=A5=E9=A3=8E?=
 <77157236+night-cruise@users.noreply.github.com>
Date: Thu, 9 Nov 2023 17:21:09 +0800
Subject: [PATCH] Unsize type must be greater than or equal to 0 (#931)

---
 codes/rust/chapter_array_and_linkedlist/my_list.rs | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/codes/rust/chapter_array_and_linkedlist/my_list.rs b/codes/rust/chapter_array_and_linkedlist/my_list.rs
index 2e3076719..efc6138ae 100644
--- a/codes/rust/chapter_array_and_linkedlist/my_list.rs
+++ b/codes/rust/chapter_array_and_linkedlist/my_list.rs
@@ -42,13 +42,13 @@ impl MyList {
     /* 访问元素 */
     pub fn get(&self, index: usize) -> i32 {
         // 索引如果越界则抛出异常，下同
-        if index < 0 || index >= self.size {panic!("索引越界")};
+        if index >= self.size {panic!("索引越界")};
         return self.arr[index];
     }
 
     /* 更新元素 */
     pub fn set(&mut self, index: usize, num: i32) {
-        if index < 0 || index >= self.size {panic!("索引越界")};
+        if index >= self.size {panic!("索引越界")};
         self.arr[index] = num;
     }
 
@@ -65,7 +65,7 @@ impl MyList {
 
     /* 中间插入元素 */
     pub fn insert(&mut self, index: usize, num: i32) {
-        if index < 0 || index >= self.size() {panic!("索引越界")};
+        if index >= self.size() {panic!("索引越界")};
         // 元素数量超出容量时，触发扩容机制
         if self.size == self.capacity() {
             self.extend_capacity();
@@ -81,7 +81,7 @@ impl MyList {
 
     /* 删除元素 */
     pub fn remove(&mut self, index: usize) -> i32 {
-        if index < 0 || index >= self.size() {panic!("索引越界")};
+        if index >= self.size() {panic!("索引越界")};
         let num = self.arr[index];
         // 将索引 index 之后的元素都向前移动一位
         for j in (index..self.size - 1) {