From fa7a40cc6ee7e16c948a804dbb487d36b3d0ccc9 Mon Sep 17 00:00:00 2001
From: Observer42 <yishengxu@outlook.com>
Date: Mon, 12 Aug 2019 16:07:13 +0800
Subject: Document From trait for BinaryHeap

---
 src/liballoc/collections/binary_heap.rs | 3 +++
 1 file changed, 3 insertions(+)

(limited to 'src/liballoc')

diff --git a/src/liballoc/collections/binary_heap.rs b/src/liballoc/collections/binary_heap.rs
index 9f531f5b83c..cc6c69d5738 100644
--- a/src/liballoc/collections/binary_heap.rs
+++ b/src/liballoc/collections/binary_heap.rs
@@ -1163,6 +1163,9 @@ impl<T> FusedIterator for Drain<'_, T> {}
 
 #[stable(feature = "binary_heap_extras_15", since = "1.5.0")]
 impl<T: Ord> From<Vec<T>> for BinaryHeap<T> {
+    /// Converts a `Vec` into a `BinaryHeap`.
+    ///
+    /// This conversion happens in-place, and has O(n) time complexity.
     fn from(vec: Vec<T>) -> BinaryHeap<T> {
         let mut heap = BinaryHeap { data: vec };
         heap.rebuild();
-- 
cgit 1.4.1-3-g733a5