From 5aa440fd7a5a6bff32fc628a6907e16cb6feb8a9 Mon Sep 17 00:00:00 2001
From: JiayiFeng <fengjiayi@baidu.com>
Date: Sat, 31 Mar 2018 05:02:19 +0000
Subject: [PATCH] Add move constructor for Item

---
 .../operators/reader/create_double_buffer_reader_op.cc   | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/paddle/fluid/operators/reader/create_double_buffer_reader_op.cc b/paddle/fluid/operators/reader/create_double_buffer_reader_op.cc
index 3f0f4492488..f15747e2662 100644
--- a/paddle/fluid/operators/reader/create_double_buffer_reader_op.cc
+++ b/paddle/fluid/operators/reader/create_double_buffer_reader_op.cc
@@ -27,6 +27,15 @@ class DoubleBufferReader : public framework::DecoratedReader {
  public:
   struct Item {
     Item() : ctx_(nullptr) {}
+    Item(Item&& b) {
+      payloads_ = std::move(b.payloads_);
+      ctx_ = std::move(b.ctx_);
+    }
+    Item& operator=(Item&& b) {
+      payloads_ = std::move(b.payloads_);
+      ctx_ = std::move(b.ctx_);
+      return *this;
+    }
 
     std::vector<framework::LoDTensor> payloads_;
     platform::DeviceContext* ctx_;
-- 
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