From ea9dd6050463185b8d4a9022218763902abd7c1c Mon Sep 17 00:00:00 2001
From: Brad Dunbar <dunbarb2@gmail.com>
Date: Sun, 21 Jan 2024 12:08:43 -0500
Subject: [PATCH] set len a little more concisely

---
 src/bytes_mut.rs | 8 +-------
 1 file changed, 1 insertion(+), 7 deletions(-)

diff --git a/src/bytes_mut.rs b/src/bytes_mut.rs
index 88d596cf6..155d686fb 100644
--- a/src/bytes_mut.rs
+++ b/src/bytes_mut.rs
@@ -888,13 +888,7 @@ impl BytesMut {
         // new start and updating the `len` field to reflect the new length
         // of the view.
         self.ptr = vptr(self.ptr.as_ptr().add(start));
-
-        if self.len >= start {
-            self.len -= start;
-        } else {
-            self.len = 0;
-        }
-
+        self.len = self.len.checked_sub(start).unwrap_or(0);
         self.cap -= start;
     }