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Private and Protected Members : C++
... whenever you can to reduce coupling and protect the implementation of the base class, but if that's not possible then use protected members. Check C++ FAQ for a better understanding of the issue. This question about protected variables might also help.
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What does Docker add to lxc-tools (the userspace LXC tools)?
... by only sending diffs.
Component re-use. Any container can be used as an "base image" to create more specialized components. This can be done manually or as part of an automated build. For example you can prepare the ideal python environment, and use it as a base for 10 different applications. Your...
Debug Error \"pure virtual function call\" 原因解析 - 更多技术 - 清泛...
...个在基类构造函数中间接调用纯虚函数的例子：
class Base
{
public:
Base(){callVirtual();}
void callVirtual(){virtualFunc();}
virtual void virtualFunc() = 0;
};
class Derived: public Base
{
public:
virtual void virtualFunc(){}
};
Derived d; //构造过程中调...
C++ equivalent of java's instanceof
...ehaviour for the class you are checking for into a virtual function on the base class or perhaps introducing something like a visitor where you can introduce specific behaviour for subclasses without changing the interface (except for adding the visitor acceptance interface of course).
As pointed o...
Why do Lua arrays(tables) start at 1 instead of 0?
...mputing think it is damned weird to start counting at zero. By adopting 1-based array and string indexing, the Lua designers avoided confounding the expectations of their first clients and sponsors.
Although I too found them weird at the beginning, I have learned to love 0-based arrays. But I get...
Difference between Document-based and Key/Value-based databases?
I know there are three different, popular types of non-sql databases.
2 Answers
2
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How does `is_base_of` work?
...
If they are related
Let's for a moment assume that B is actually a base of D. Then for the call to check, both versions are viable because Host can be converted to D* and B*. It's a user defined conversion sequence as described by 13.3.3.1.2 from Host<B, D> to D* and B* respectively. F...
Naming conventions for abstract classes
...ember that, at one time, the guideline pushed by Microsoft was to add the "Base" suffix to an abstract class to obviate the fact that it was abstract. Hence, we have classes like System.Web.Hosting.VirtualFileBase , System.Configuration.ConfigurationValidatorBase , System.Windows.Forms.ButtonBase...
Is there any JSON Web Token (JWT) example in C#?
...
Thanks everyone. I found a base implementation of a Json Web Token and expanded on it with the Google flavor. I still haven't gotten it completely worked out but it's 97% there. This project lost it's steam, so hopefully this will help someone else get...
Why doesn't ruby support method overloading?
...'t even make sense in Ruby. It is basically a synonym for "static argument-based dispatch", but Ruby doesn't have static dispatch at all. So, the reason why Ruby doesn't support static dispatch based on the arguments, is because it doesn't support static dispatch, period. It doesn't support static d...