得出一个班...... [英] deriving a class...
问题描述
我可以通过推导我的班级来阻止人们吗？
我的意思是我不希望我的班级成为基地......
我可以做吗？那个？
Shraddha写道：
我可以阻止人们通过推导我的班级？
我的意思是我不希望我的班级成为基础班......
我可以这样做吗？
是的。请参阅常见问题解答。
V
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6月19日上午11点10分，Shraddha< ; shraddhajosh ... @ gmail.comwrote：
我可以通过派生班来阻止人们吗？
我的意思是我不是希望我的班级成为一个基类...
我可以这样做吗？
是的，你可以但是你必须对你的班级'
构造和继承做一些调整。
类可用;
类Usable_lock {
朋友类可用;
私人：
Usable_lock（）{}
Usable_lock（const Usable_lock&）{}
};
类可用：public virtual Usable_lock {
// ...
public：
Usable（）;
可用（ char *）;
// ...
};
可用a;
class DD：public Usable {};
DD dd; //错误：DD :: DD（）无法访问
// Usable_lock :: Usable_lock（）：私有成员
你可以查看更多关于它的信息
http：//www.research .att.com / ~bs / bs_f ... #no-derivation
问候，
Sarath
http://sarathc.wordpress.com/
" Shraddha" < sh ************* @ gmail.comwrote in message
news：11 ***************** ****@o11g2000prd.googlegro ups.com ...
我可以通过派生班来阻止人们吗？
我的意思是我我不希望我的班级成为基地......
我可以这样做吗？
3种方式，如常见问题所示：
http://www.parashift.com/c++-faq-lit...html#faq-23.11
Can I stop people by deriving my class?
I mean I don''t want my class to be as a base class...
Can I do that?
Shraddha wrote:Can I stop people by deriving my class?
I mean I don''t want my class to be as a base class...
Can I do that?Yes. See the FAQ.
V
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On Jun 19, 11:10 am, Shraddha <shraddhajosh...@gmail.comwrote:Can I stop people by deriving my class?
I mean I don''t want my class to be as a base class...
Can I do that?Yes you can but you have to do some tweaks with your class''s
construction and with inheritance.
class Usable;
class Usable_lock {
friend class Usable;
private:
Usable_lock() {}
Usable_lock(const Usable_lock&) {}
};
class Usable : public virtual Usable_lock {
// ...
public:
Usable();
Usable(char*);
// ...
};
Usable a;
class DD : public Usable { };
DD dd; // error: DD::DD() cannot access
// Usable_lock::Usable_lock(): private member
You can check more about it at
http://www.research.att.com/~bs/bs_f...#no-derivation
Regards,
Sarath
http://sarathc.wordpress.com/
"Shraddha" <sh*************@gmail.comwrote in message
news:11*********************@o11g2000prd.googlegro ups.com...Can I stop people by deriving my class?
I mean I don''t want my class to be as a base class...
Can I do that?3 ways, shown in the FAQ:
http://www.parashift.com/c++-faq-lit...html#faq-23.11
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