From 9c1e67a96f0db42d198919b9188eba59c2cb24d7 Mon Sep 17 00:00:00 2001
From: Dahooz <alex.dehos@tum.de>
Date: Fri, 12 May 2017 19:10:41 +0200
Subject: [PATCH] Use correct slice indices in RefReadBuffer.peek_next()

Currently, if one wants to peek at x bytes in buffer b, one has to use

b.peek_next(b.capacity()-b.remaining() + x)

which is awful.
---
 src/buffer.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/buffer.rs b/src/buffer.rs
index c9ad3e99..c71ea876 100644
--- a/src/buffer.rs
+++ b/src/buffer.rs
@@ -89,7 +89,7 @@ impl <'a> ReadBuffer for RefReadBuffer<'a> {
     }
     fn reset(&mut self) { self.pos = 0; }
 
-    fn peek_next(&self, count: usize) -> &[u8] { &self.buff[self.pos..count] }
+    fn peek_next(&self, count: usize) -> &[u8] { &self.buff[self.pos..self.pos + count] }
 
     fn take_next(&mut self, count: usize) -> &[u8] {
         let r = &self.buff[self.pos..self.pos + count];