math.h

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// Math.h : Declaration of the CMath

#ifndef __MATH_H_
#define __MATH_H_

#include "resource.h"       // main symbols

/////////////////////////////////////////////////////////////////////////////
// CMath
class ATL_NO_VTABLE CMath : 
	public CComObjectRootEx<CComSingleThreadModel>,
	public CComCoClass<CMath, &CLSID_Math>,
	public ISupportErrorInfo,
	public IDispatchImpl<IMath, &IID_IMath, &LIBID_CHAPTER6_SERVERLib>,
	public IDispatchImpl<IAdvancedMath, &IID_IAdvancedMath, &LIBID_CHAPTER6_SERVERLib>,
	public IDispatchImpl<IMath2, &IID_IMath2, &LIBID_CHAPTER6_SERVERLib>
{
public:
	CMath()
	{
	}

DECLARE_REGISTRY_RESOURCEID(IDR_MATH)

BEGIN_COM_MAP(CMath)
	COM_INTERFACE_ENTRY(IMath)
	COM_INTERFACE_ENTRY2(IDispatch, IMath)
   COM_INTERFACE_ENTRY(IAdvancedMath)
   COM_INTERFACE_ENTRY(IMath2)
	COM_INTERFACE_ENTRY(ISupportErrorInfo)
END_COM_MAP()

// ISupportsErrorInfo
	STDMETHOD(InterfaceSupportsErrorInfo)(REFIID riid);

// IMath
public:
	STDMETHOD(Divide)(VARIANT varOp1, VARIANT varOp2, VARIANT* pvarResult);
	STDMETHOD(Multiply)(VARIANT varOp1, VARIANT varOp2, VARIANT* pvarResult);
	STDMETHOD(Subtract)(VARIANT varOp1, VARIANT varOp2, VARIANT* pvarResult);
	STDMETHOD(Add)(VARIANT varOp1, VARIANT varOp2, VARIANT* pvarResult);

// IAdvancedMath
public:
	STDMETHOD(Fibonacci)(short sOp, long* plResult);
	STDMETHOD(Factorial)(short sOp, long* plResult);

// IMath2
public:
	STDMETHOD(Sum)(VARIANT varOp1, long* plResult);
};

#endif //__MATH_H_