From 6210d5a9c3dca2a3be5486887e1347b0f7efbc0b Mon Sep 17 00:00:00 2001
From: Justus Winter <justus@sequoia-pgp.org>
Date: Fri, 14 Jun 2019 12:34:55 +0200
Subject: buffered-reader: Clarify loop variant.

  - Fixes #237.
---
 buffered-reader/src/lib.rs | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/buffered-reader/src/lib.rs b/buffered-reader/src/lib.rs
index b7913e45..d0e10ffb 100644
--- a/buffered-reader/src/lib.rs
+++ b/buffered-reader/src/lib.rs
@@ -416,7 +416,9 @@ pub trait BufferedReader<C> : io::Read + fmt::Debug + fmt::Display {
         // large!  Instead, try with increasingly larger buffers until
         // the read is (strictly) shorter than the specified size.
         let mut s = DEFAULT_BUF_SIZE;
-        while s < std::usize::MAX {
+        // We will break the loop eventually, because self.data(s)
+        // must return a slice shorter than std::usize::MAX.
+        loop {
             match self.data(s) {
                 Ok(ref buffer) => {
                     if buffer.len() < s {
-- 
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