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Can a class within a singleton class read its variables?

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Started by johnnyBravo November 16, 2003 06:38 PM

3 comments, last by johnnyBravo 20 years, 5 months ago

johnnyBravo

100

Author

November 16, 2003 06:38 PM

Say ive got a singleton class


class Singleton {
    int number;
    
    class inside {
        void changeNum()
        {
            number=5;
        }
    };
};

Can "inside" class see "number" variable?

Fruny

1,658

November 16, 2003 07:06 PM

"Debugging is twice as hard as writing the code in the first place. Therefore, if you write the code as cleverly as possible, you are, by definition, not smart enough to debug it." — Brian W. Kernighan

antareus

576

November 16, 2003 07:23 PM

Just pass a reference to the outer class into the inner when the inner is created.

--God has paid us the intolerable compliment of loving us, in the deepest, most tragic, most inexorable sense.- C.S. Lewis

johnnyBravo

100

Author

November 16, 2003 07:25 PM

im not exactly sure how you would do that, could u provide a quick example?

superpig

1,826

November 16, 2003 08:25 PM

class SingletonClass{ public: int a; class inner {  int &a  public:  inner(int &i) : a(i) {} };};

Of course there''s no actual instantiation of ''inner'' there so...

Java can do it. C++ can''t.

Richard "Superpig" Fine
- saving pigs from untimely fates, and when he''s not doing that, runs The Binary Refinery.
Enginuity1 | Enginuity2 | Enginuity3 | Enginuity4 | Enginuity5
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"Don''t document your code; code your documentation." -me

Richard "Superpig" Fine - saving pigs from untimely fates - Microsoft DirectX MVP 2006/2007/2008/2009
"Shaders are not meant to do everything. Of course you can try to use it for everything, but it's like playing football using cabbage." - MickeyMouse

Can a class within a singleton class read its variables?

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