elementcomparisonfunctions.h

最新官方例子,图形,描述副,基本控件,通讯协议,等等,

#ifndef ELEMENTCOMPARISONFUNCTIONS_H
#define ELEMENTCOMPARISONFUNCTIONS_H
// INCLUDES

// System includes
#include <e32base.h>

// FORWARD DECLARATIONS
class CChemicalElement;

// CLASS DECLARATION

/**
*
* @class	NElementComparisonFunctions elementcomparisonfunctions.h
* @brief	A namespace to encapsulate functions that are used by CElementList to do comparison
*			of elements for finding and sorting elements. They don't logically belong in either
*			the CElementList or CChemicalElement classes. A namespace is used to prevent them
*			being declared as global functions that would clutter up the global namespace.
*
* Copyright (c) EMCC Software Ltd 2003
* @version 1.0
*/
namespace NElementComparisonFunctions
	{
	//Equality functions
	//(true if aElement1 == aElement2)
	TBool ElementsHaveSameName(const CChemicalElement& aElement1, const CChemicalElement& aElement2);
	TBool ElementsHaveSameSymbol(const CChemicalElement& aElement1, const CChemicalElement& aElement2);
	TBool ElementsHaveSameAtomicNumber(const CChemicalElement& aElement1, const CChemicalElement& aElement2);
	//Comparison functions
	//(<0 if aElement1 < aElement2,
	// ==0 if aElement1 == aElement2,
	// >0 if aElement1 > aElement2)
	TInt CompareElementsName(const CChemicalElement& aElement1, const CChemicalElement& aElement2);
	TInt CompareElementsSymbol(const CChemicalElement& aElement1, const CChemicalElement& aElement2);
	TInt CompareElementsAtomicNumber(const CChemicalElement& aElement1, const CChemicalElement& aElement2);
	TInt CompareElementsRelativeAtomicMass(const CChemicalElement& aElement1, const CChemicalElement& aElement2);
	};


#endif // #ifndef ELEMENTCOMPARISONFUNCTIONS_H

// End of File