From b736288211cb6e640b872e2d3f293912f86bb0d2 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=82=B9=E6=99=93=E8=88=AA?= <1210603696@qq.com>
Date: Mon, 5 Jan 2015 09:37:35 +0800
Subject: [PATCH] bug fix

---
 TinySTL/CircularBuffer.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/TinySTL/CircularBuffer.h b/TinySTL/CircularBuffer.h
index 92aa859..468179e 100644
--- a/TinySTL/CircularBuffer.h
+++ b/TinySTL/CircularBuffer.h
@@ -230,6 +230,9 @@ namespace TinySTL{
 	template<class T, size_t N, class Alloc>
 	template<class InputIterator>
 	circular_buffer<T, N, Alloc>::circular_buffer(InputIterator first, InputIterator last){
+		//bug fix
+		//2015.01.05
+		assert(first != last);
 		allocateAndCopy(first, last);
 	}
 	template<class T, size_t N, class Alloc>