From d9ff1ea07a5e8a4dc07eac76fd61f11ae609a9d3 Mon Sep 17 00:00:00 2001
From: Shamir Khodzha <khodzha.sh@gmail.com>
Date: Sat, 2 May 2020 17:49:41 +0300
Subject: [PATCH] fixed skewed range in put_data of Storage

ensure! macro was mutating the range so by the end of the macro evaluation
the range was in wrong state
---
 src/storage/mod.rs | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/storage/mod.rs b/src/storage/mod.rs
index 4959611..34fd869 100644
--- a/src/storage/mod.rs
+++ b/src/storage/mod.rs
@@ -107,10 +107,10 @@ where
             return Ok(());
         }
 
-        let mut range = self.data_offset(index, nodes)?;
+        let range = self.data_offset(index, nodes)?;
 
         ensure!(
-            range.by_ref().count() == data.len(),
+            (range.end - range.start) as usize == data.len(),
             format!("length  `{:?} != {:?}`", range.count(), data.len())
         );