From 3723304da953cce7aa88d1fdbd684bff91412dae Mon Sep 17 00:00:00 2001
From: Yu Yang <yuyang18@baidu.com>
Date: Mon, 2 Oct 2017 11:56:14 -0700
Subject: [PATCH] Add missing ctor

---
 paddle/framework/grad_op_desc_maker.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/paddle/framework/grad_op_desc_maker.h b/paddle/framework/grad_op_desc_maker.h
index cb4d160bd0..b4b6d54bf3 100644
--- a/paddle/framework/grad_op_desc_maker.h
+++ b/paddle/framework/grad_op_desc_maker.h
@@ -79,6 +79,8 @@ class GradOpDescMakerBase {
 
 class SingleGradOpDescMaker : public GradOpDescMakerBase {
  public:
+  using GradOpDescMakerBase::GradOpDescMakerBase;
+
   std::vector<OpDescBind> operator()() const { return {this->Apply()}; }
 
  protected:
@@ -86,6 +88,9 @@ class SingleGradOpDescMaker : public GradOpDescMakerBase {
 };
 
 class DefaultGradOpDescMaker : public SingleGradOpDescMaker {
+ public:
+  using SingleGradOpDescMaker::SingleGradOpDescMaker;
+
  protected:
   virtual OpDescBind Apply() const {
     OpDescBind grad;
-- 
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