请问C++中的属性实现

请教C++中的属性实现？
C#中的属性一般为：

C# code

public double Number{  set { SetValue(NumberProperty, value); }  get { return (double)GetValue(NumberProperty) }}

C/C++ code

public int Width{  set { SetValue(WidthProperty, value); }  get { return (int)GetValue(WidthProperty) }}public int Height{  set { SetValue(HeightProperty, value); }  get { return (int)GetValue(HeightProperty) }}

C/C++ code

// declspec_property.cppstruct S {   int i;   void putprop(int j) {       i = j;   }   int getprop() {      return i;   }   __declspec(property(get = getprop, put = putprop)) int the_prop;//定义属性};int main() {   S s;   s.the_prop = 5;   return s.the_prop;}
[解决办法]
C++属性

C/C++ code
 _declspec(property(put=setJobID, get=getJobID))         unsigned long jobID;     void  setJobID(unsigned long inJobID);     unsigned long   getJobID() const;
[解决办法]
codeproject上也有下面这样的宏
C/C++ code
#define PROPERTY(t,n)  __declspec( property ( put = property__set_##n , get = property__get_##n ) ) t n;\    typedef t property__tmp_type_##n;#define READONLY_PROPERTY(t,n) __declspec( property (get = property__get_##n) ) t n;\    typedef t property__tmp_type_##n;#define WRITEONLY_PROPERTY(t,n) __declspec( property (put = property__set_##n) ) t n;\    typedef t property__tmp_type_##n#define GET(n) property__tmp_type_##n property__get_##n() #define SET(n) void property__set_##n(const property__tmp_type_##n& value)
[解决办法]
扩展了下，不过没做到和C#语法一致
C/C++ code
#include <iostream>using namespace std;#define PROPERTY(t,n)  __declspec( property ( put = property__set_##n , get = property__get_##n ) ) t n;\    typedef t property__tmp_type_##n;#define READONLY_PROPERTY(t,n) __declspec( property (get = property__get_##n) ) t n;\    typedef t property__tmp_type_##n;#define WRITEONLY_PROPERTY(t,n) __declspec( property (put = property__set_##n) ) t n;\    typedef t property__tmp_type_##n#define GET(n) property__tmp_type_##n property__get_##n() #define SET(n) void property__set_##n(const property__tmp_type_##n& value)  class Value{public:    template<typename T>    void SetValue(T& dst, const T& src)    {        dst = src;    }    template<typename T>    T GetValue(const T& tag)    {        return tag;    }};class A : Value{public:        PROPERTY(int, Width);    SET(Width) {SetValue(_width, value);}    GET(Width) { return (int)GetValue(_width);}    WRITEONLY_PROPERTY(int, Height);    SET(Height) {SetValue(_height, value);}private:    int _width;    int _height;};int main(){    A a;    a.Width = 2;    a.Height = 3;    cout << a.Width <<endl;;    cout << a.Height<<endl; // error, no get    return 0;}