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Diffstat (limited to 'core/fxcrt/cfx_autorestorer.h')
-rw-r--r-- | core/fxcrt/cfx_autorestorer.h | 20 |
1 files changed, 20 insertions, 0 deletions
diff --git a/core/fxcrt/cfx_autorestorer.h b/core/fxcrt/cfx_autorestorer.h new file mode 100644 index 0000000000..a8c5125c4e --- /dev/null +++ b/core/fxcrt/cfx_autorestorer.h @@ -0,0 +1,20 @@ +// Copyright 2017 PDFium Authors. All rights reserved. +// Use of this source code is governed by a BSD-style license that can be +// found in the LICENSE file. + +#ifndef CORE_FXCRT_CFX_AUTORESTORER_H_ +#define CORE_FXCRT_CFX_AUTORESTORER_H_ + +template <typename T> +class CFX_AutoRestorer { + public: + explicit CFX_AutoRestorer(T* location) + : m_Location(location), m_OldValue(*location) {} + ~CFX_AutoRestorer() { *m_Location = m_OldValue; } + + private: + T* const m_Location; + const T m_OldValue; +}; + +#endif // CORE_FXCRT_CFX_AUTORESTORER_H_ |