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45 lines
1.3 KiB
C++
45 lines
1.3 KiB
C++
/*
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* All or portions of this file Copyright (c) Amazon.com, Inc. or its affiliates or
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* its licensors.
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*
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* For complete copyright and license terms please see the LICENSE at the root of this
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* distribution (the "License"). All use of this software is governed by the License,
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* or, if provided, by the license below or the license accompanying this file. Do not
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* remove or modify any license notices. This file is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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*
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*/
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// Original file Copyright Crytek GMBH or its affiliates, used under license.
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#ifndef CRYINCLUDE_CRYCOMMON_SCOPEDVARIABLESETTER_H
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#define CRYINCLUDE_CRYCOMMON_SCOPEDVARIABLESETTER_H
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#pragma once
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// The idea of this class is to set the value of a variable in its constructor,
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// and then in the destructor to reset it to its initial value.
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template <typename T>
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class CScopedVariableSetter
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{
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public:
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typedef T Value;
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CScopedVariableSetter(Value& variable, const Value& temporaryValue)
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: m_oldValue(variable)
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, m_variable(variable)
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{
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m_variable = temporaryValue;
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}
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~CScopedVariableSetter()
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{
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m_variable = m_oldValue;
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}
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private:
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Value m_oldValue;
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Value& m_variable;
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};
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#endif // CRYINCLUDE_CRYCOMMON_SCOPEDVARIABLESETTER_H
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