1 // Copyright 2020 PDFium Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style license that can be
3 // found in the LICENSE file.
4 
5 #ifndef CORE_FXCRT_AUTONULLER_H_
6 #define CORE_FXCRT_AUTONULLER_H_
7 
8 namespace fxcrt {
9 
10 template <typename T>
11 class AutoNuller {
12  public:
AutoNuller(T * location)13   explicit AutoNuller(T* location) : m_Location(location) {}
~AutoNuller()14   ~AutoNuller() {
15     if (m_Location)
16       *m_Location = nullptr;
17   }
AbandonNullification()18   void AbandonNullification() { m_Location = nullptr; }
19 
20  private:
21   T* m_Location;
22 };
23 
24 }  // namespace fxcrt
25 
26 using fxcrt::AutoNuller;
27 
28 #endif  // CORE_FXCRT_AUTONULLER_H_
29