From aeecdadf3d517c6b316ae11646d5aeb98006891c Mon Sep 17 00:00:00 2001
From: liaogang <liaogang@baidu.com>
Date: Mon, 12 Jun 2017 16:23:39 +0800
Subject: [PATCH] add ostream

---
 paddle/strings/stringpiece.h | 1 +
 1 file changed, 1 insertion(+)

diff --git a/paddle/strings/stringpiece.h b/paddle/strings/stringpiece.h
index 89aa084a292..b452116057c 100644
--- a/paddle/strings/stringpiece.h
+++ b/paddle/strings/stringpiece.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <string>
+#include <ostream>
 
 namespace paddle {
 
-- 
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