Index: cc/ring_buffer.h |
diff --git a/cc/ring_buffer.h b/cc/ring_buffer.h |
index 84283a9f863a293c1574673425f0dda1eb295cd2..929d74cb0e91e2d28e861c77a8bce375eea8794d 100644 |
--- a/cc/ring_buffer.h |
+++ b/cc/ring_buffer.h |
@@ -31,7 +31,7 @@ class RingBuffer { |
// n = 0 returns the oldest value and |
// n = bufferSize() - 1 returns the most recent value. |
- T ReadBuffer(size_t n) const { |
+ const T& ReadBuffer(size_t n) const { |
DCHECK(IsFilledIndex(n)); |
return buffer_[BufferIndex(n)]; |
} |