From 1c368d58ddb8e4feded403556b9921bafe8f9b83 Mon Sep 17 00:00:00 2001
From: Yotam Ofek <yotam.ofek@gmail.com>
Date: Thu, 27 Nov 2025 15:38:48 +0200
Subject: [PATCH] Use `usize::div_ceil` instead of open-coding it

---
 library/core/src/slice/iter.rs | 16 ++++------------
 1 file changed, 4 insertions(+), 12 deletions(-)

diff --git a/library/core/src/slice/iter.rs b/library/core/src/slice/iter.rs
index a2fbf6ead6461..6b885fd859337 100644
--- a/library/core/src/slice/iter.rs
+++ b/library/core/src/slice/iter.rs
@@ -1523,9 +1523,7 @@ impl<'a, T> Iterator for Chunks<'a, T> {
         if self.v.is_empty() {
             (0, Some(0))
         } else {
-            let n = self.v.len() / self.chunk_size;
-            let rem = self.v.len() % self.chunk_size;
-            let n = if rem > 0 { n + 1 } else { n };
+            let n = self.v.len().div_ceil(self.chunk_size);
             (n, Some(n))
         }
     }
@@ -1705,9 +1703,7 @@ impl<'a, T> Iterator for ChunksMut<'a, T> {
         if self.v.is_empty() {
             (0, Some(0))
         } else {
-            let n = self.v.len() / self.chunk_size;
-            let rem = self.v.len() % self.chunk_size;
-            let n = if rem > 0 { n + 1 } else { n };
+            let n = self.v.len().div_ceil(self.chunk_size);
             (n, Some(n))
         }
     }
@@ -2347,9 +2343,7 @@ impl<'a, T> Iterator for RChunks<'a, T> {
         if self.v.is_empty() {
             (0, Some(0))
         } else {
-            let n = self.v.len() / self.chunk_size;
-            let rem = self.v.len() % self.chunk_size;
-            let n = if rem > 0 { n + 1 } else { n };
+            let n = self.v.len().div_ceil(self.chunk_size);
             (n, Some(n))
         }
     }
@@ -2520,9 +2514,7 @@ impl<'a, T> Iterator for RChunksMut<'a, T> {
         if self.v.is_empty() {
             (0, Some(0))
         } else {
-            let n = self.v.len() / self.chunk_size;
-            let rem = self.v.len() % self.chunk_size;
-            let n = if rem > 0 { n + 1 } else { n };
+            let n = self.v.len().div_ceil(self.chunk_size);
             (n, Some(n))
         }
     }