fix some compile error

paddle/framework/tensor.h

@@ -14,32 +14,39 @@ limitations under the License. */
 
 #pragma once
 
+#include <memory>
+#include <type_traits>
+#include <typeinfo>
+#include "paddle/framework/ddim.h"
+#include "paddle/framework/enforce.h"
+#include "paddle/memory/memory.h"
+#include "paddle/platform/assert.h"
+#include "paddle/platform/place.h"
+
 namespace paddle {
 namespace framework {
 
 class Tensor {
-  using paddle::platform::Place;
-
  public:
   template <typename T>
   const T* data() const {
     PADDLE_ENFORCE(holder_ != nullptr,
                    "Tensor::data must be called after Tensor::mutable_data");
-    return static_cast<const T*>(holder->Ptr());
+    return static_cast<const T*>(holder_->Ptr());
   }
 
   template <typename T,  // must be POD types
-            typename = std::enable_if<std::is_pod<T>::value>::type>
-  T* mutable_data(DDim dims, Place place) {
+            typename std::enable_if<std::is_pod<T>::value>::type* = nullptr>
+  T* mutable_data(DDim dims, paddle::platform::Place place) {
     if (holder_ == nullptr || holder_->Place() != place ||
-        holder_->Size() < dims.product() * sizeof(T)) {
-      holder_.reset(new PlaceholderImpl(place, dims.product() * sizeof(T)));
+        holder_->Size() < product(dims) * sizeof(T)) {
+      holder_.reset(new PlaceholderImpl<T>(place, product(dims) * sizeof(T)));
     }
     return static_cast<T*>(holder_->Ptr());
   }
 
   template <typename T,  // must be POD types
-            typename = std::enable_if<std::is_pod<T>::value>::type>
+            typename std::enable_if<std::is_pod<T>::value>::type* = nullptr>
   T* mutable_data(DDim dims) {
     return mutable_data<T>(dims, paddle::platform::get_place());
   }
@@ -50,23 +57,23 @@ class Tensor {
   struct Placeholder {
     virtual ~Placeholder() {}
     virtual void* Ptr() const = 0;
-    virtual Place Place() const = 0;
+    virtual paddle::platform::Place Place() const = 0;
     virtual size_t Size() const = 0;
   };
 
   template <typename T>
   struct PlaceholderImpl : public Placeholder {
-    PlaceholderImpl(Place pl, size_t size)
+    PlaceholderImpl(paddle::platform::Place pl, size_t size)
         : ptr_(paddle::memory::Alloc(pl, size), paddle::memory::Deleter(pl)),
           place_(pl),
           size_(size) {}
 
     virtual void* Ptr() const { return static_cast<void*>(ptr_.get()); }
     virtual size_t Size() const { return size_; }
-    virtual Place Place() const { return place_; }
+    virtual paddle::platform::Place Place() const { return place_; }
 
     std::unique_ptr<T, memory::Deleter> ptr_;
-    Place place_;  // record the place of ptr_.
+    paddle::platform::Place place_;  // record the place of ptr_.
     size_t size_;                    // size of the memory block.
   };