From 80b1d88bb07b81f44aac2cb2e9d9fcd739340463 Mon Sep 17 00:00:00 2001
From: Maxime Coste <frrrwww@gmail.com>
Date: Sat, 12 Dec 2015 23:50:01 +0000
Subject: [PATCH] Fix Buffer::changes_since if we get passed an invalid
 timestamp

---
 src/buffer.inl.hh | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/buffer.inl.hh b/src/buffer.inl.hh
index 887b3e09..cabec9c8 100644
--- a/src/buffer.inl.hh
+++ b/src/buffer.inl.hh
@@ -91,8 +91,10 @@ inline size_t Buffer::timestamp() const
 
 inline ConstArrayView<Buffer::Change> Buffer::changes_since(size_t timestamp) const
 {
-    return { m_changes.data() + timestamp,
-             m_changes.data() + m_changes.size() };
+    if (timestamp < m_changes.size())
+        return { m_changes.data() + timestamp,
+                 m_changes.data() + m_changes.size() };
+    return {};
 }
 
 inline ByteCoord Buffer::back_coord() const