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-rw-r--r--library/alloc/src/collections/linked_list.rs10
1 files changed, 10 insertions, 0 deletions
diff --git a/library/alloc/src/collections/linked_list.rs b/library/alloc/src/collections/linked_list.rs
index 9d45c5082db..c5c32674eec 100644
--- a/library/alloc/src/collections/linked_list.rs
+++ b/library/alloc/src/collections/linked_list.rs
@@ -631,6 +631,8 @@ impl<T> LinkedList<T> {
     /// Returns `true` if the `LinkedList` contains an element equal to the
     /// given value.
     ///
+    /// This operation should compute in *O*(*n*) time.
+    ///
     /// # Examples
     ///
     /// ```
@@ -656,6 +658,8 @@ impl<T> LinkedList<T> {
     /// Provides a reference to the front element, or `None` if the list is
     /// empty.
     ///
+    /// This operation should compute in *O*(1) time.
+    ///
     /// # Examples
     ///
     /// ```
@@ -676,6 +680,8 @@ impl<T> LinkedList<T> {
     /// Provides a mutable reference to the front element, or `None` if the list
     /// is empty.
     ///
+    /// This operation should compute in *O*(1) time.
+    ///
     /// # Examples
     ///
     /// ```
@@ -702,6 +708,8 @@ impl<T> LinkedList<T> {
     /// Provides a reference to the back element, or `None` if the list is
     /// empty.
     ///
+    /// This operation should compute in *O*(1) time.
+    ///
     /// # Examples
     ///
     /// ```
@@ -722,6 +730,8 @@ impl<T> LinkedList<T> {
     /// Provides a mutable reference to the back element, or `None` if the list
     /// is empty.
     ///
+    /// This operation should compute in *O*(1) time.
+    ///
     /// # Examples
     ///
     /// ```