"change header guard to pragma"

paddle/optimizer/CMakeLists.txt

@@ -9,17 +9,6 @@ set(OPITMIZER_SRCS
     sgd_optmizer.cc
   )
 
-set(OPITMIZER_HEADERS
-    adadelta_optimizer.h
-    adagrad_optimizer.h
-    adam_optimizer.h
-    lr_policy.h
-    optimizer.h
-    parameter_optimizer.h
-    sgd_optimizer.h
-    tensor.h
-  )
-
 add_library(optimizer STATIC ${OPITMIZER_SRCS})
 add_dependencies(optimizer gen_proto_cpp)
 

paddle/optimizer/Tensor.h

-#ifndef PADDLE_OPTIMIZER_TENSOR_H_
-#define PADDLE_OPTIMIZER_TENSOR_H_
+#pragma once
 /**
  * @brief tensor used by optimizer
  */
 
 #include <string.h>
+#include <memory>
 #include "paddle/utils/Common.h"
 #include "paddle/utils/Logging.h"
 
@@ -45,5 +45,3 @@ typedef TensorT<real> Tensor;
 
 }  // namespace optimizer
 }  // namespace paddle
-
-#endif

paddle/optimizer/adadelta_optimizer.h

-#ifndef PADDLE_ADADELTA_OPTIMIZER_H_
-#define PADDLE_ADADELTA_OPTIMIZER_H_
+#pragma once
 
 #include "parameter_optimizer.h"
 
@@ -31,5 +30,3 @@ private:
 
 }  // namespace optimizer
 }  // namespace paddle
-
-#endif

paddle/optimizer/adagrad_optimizer.h

-#ifndef PADDLE_ADAGRAD_OPTIMIZER_H_
-#define PADDLE_ADAGRAD_OPTIMIZER_H_
+#pragma once
 
 #include "parameter_optimizer.h"
 
@@ -25,5 +24,3 @@ private:
 
 }  // namespace optimizer
 }  // namespace paddle
-
-#endif

paddle/optimizer/adam_optimizer.h

-#ifndef PADDLE_ADAM_OPTIMIZER_H_
-#define PADDLE_ADAM_OPTIMIZER_H_
+#pragma once
 
 #include "parameter_optimizer.h"
 
@@ -34,4 +33,3 @@ private:
 
 }  // namespace optimizer
 }  // namespace paddle
-#endif

paddle/optimizer/lr_policy.h

-#ifndef PADDLE_OPTIMIZER_LR_POLICY_H_
-#define PADDLE_OPTIMIZER_LR_POLICY_H_
+#pragma once
 
 #include <algorithm>
 #include "OptimizerConfig.pb.h"
@@ -41,5 +40,3 @@ private:
 
 }  // namespace optimizer
 }  // namespace paddle
-
-#endif

paddle/optimizer/optimizer.h

-#ifndef PADDLE_LIB_OPTIMIZER_H_
-#define PADDLE_LIB_OPTIMIZER_H_
+#pragma once
+
 #include <stdbool.h>
 #include <stdint.h>
 
@@ -93,4 +93,3 @@ int paddle_optimizer_get_state(paddle_optimizer* o, const char* state);
 #ifdef __cplusplus
 }
 #endif
-#endif

paddle/optimizer/parameter_optimizer.h

-#ifndef PADDLE_PARAMETER_OPTIMIZER_H_
-#define PADDLE_PARAMETER_OPTIMIZER_H_
+#pragma once
 
 #include <glog/logging.h>
 #include <functional>
@@ -40,5 +39,3 @@ protected:
 
 }  // namespace optimizer
 }  // namespace paddle
-
-#endif

paddle/optimizer/serialization.h

-#ifndef PADDLE_OPTIMIZER_SERIALIZARION_H
-#define PADDLE_OPTIMIZER_SERIALIZARION_H
+#pragma once
 
 #include <sstream>
 #include <string>
@@ -33,4 +32,3 @@ static void ProtoToTensor(const TensorProto& proto, Tensor* tensor) {
 
 }  // namespace optimizer
 }  // namespace paddle
-#endif