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36 lines
687 B
C++
36 lines
687 B
C++
#pragma once
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template <typename T>
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class DefaultVariable
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{
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public:
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DefaultVariable(const T & value)
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{
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defaultValue = value;
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}
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DefaultVariable<T> & operator =(const T & value)
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{
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currentValue = value;
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is_default = currentValue == defaultValue;
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is_explicit = true;
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return *this;
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}
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operator const T &() const
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{
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return is_default ? defaultValue : currentValue;
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}
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bool isDefault() const
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{
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return is_default;
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}
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bool isExplicit() const
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{
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return is_explicit;
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}
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private:
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T currentValue;
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T defaultValue;
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bool is_default = true;
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bool is_explicit = false;
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};
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