follow comment. test=develop

dzhwinter · dzhwinter · commit 2561a6fc596e · 2019-01-31T14:50:19.000+08:00
diff --git a/paddle/fluid/framework/details/inplace_op_pass.cc b/paddle/fluid/framework/details/inplace_op_pass.cc
@@ -401,7 +401,7 @@ void GraphView::Build(ir::Graph* g) {
   }
 }
 
-const& std::vector<ir::Node*> GraphView::AllOps() { return ops_; }
+const std::vector<ir::Node*>& GraphView::AllOps() { return ops_; }
 
 bool GraphView::ReusedInPythonMemOpt(const std::string& var) const {
   return dup_nodes_.count(var);
diff --git a/paddle/fluid/framework/details/inplace_op_pass.h b/paddle/fluid/framework/details/inplace_op_pass.h
@@ -33,7 +33,7 @@ class GraphView {
 
   void Build(ir::Graph* g);
 
-  const& std::vector<ir::Node*> AllOps();
+  const std::vector<ir::Node*>& AllOps();
 
   ir::Node* GetNodeByName(const std::string& name,
                           const std::vector<ir::Node*>& nodes) const;

Original file line number	Diff line number	Diff line change
`@@ -401,7 +401,7 @@ void GraphView::Build(ir::Graph* g) {`
`401`	`401`	`}`
`402`	`402`	`}`
`403`	`403`
`404`		`-const& std::vector<ir::Node*> GraphView::AllOps() { return ops_; }`
	`404`	`+const std::vector<ir::Node*>& GraphView::AllOps() { return ops_; }`
`405`	`405`
`406`	`406`	`bool GraphView::ReusedInPythonMemOpt(const std::string& var) const {`
`407`	`407`	`return dup_nodes_.count(var);`