57 lines
973 B
C
57 lines
973 B
C
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// Copyright (C) 2007 Id Software, Inc.
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//
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#ifndef __IDLIB_HANDLE_H__
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#define __IDLIB_HANDLE_H__
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namespace sdUtility {
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/*
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============
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sdHandle
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============
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*/
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template< class T, T invalidValue >
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class sdHandle {
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public:
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typedef T valueType_t;
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sdHandle() :
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value ( invalidValue ) {}
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sdHandle( const T& rhs ) :
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value ( rhs ) {}
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sdHandle& operator=( const T& rhs ) {
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value = rhs;
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return *this;
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}
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bool operator==( const sdHandle< T, invalidValue >& rhs ) {
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return value == rhs.value;
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}
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bool operator!() {
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return !IsValid();
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}
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bool IsValid() const {
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return value != INVALID_VALUE;
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}
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void Release() {
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value = INVALID_VALUE;
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}
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operator T() const {
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return value;
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}
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private:
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T value;
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static T INVALID_VALUE;
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};
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template< class T, T invalidValue > T sdHandle< T, invalidValue >::INVALID_VALUE = invalidValue;
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}
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#endif // __IDLIB_HANDLE_H__
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