what is containership or nesting in C

According to what I believed, a class may include objects from another class as member data.

Please provide an illustration.

Thanks.

Jul 11, 2022 in C++ by Nicholas
• 7,760 points • 371 views

No answer to this question. Be the first to respond.

Your answer

Your name to display (optional):

Email me at this address if my answer is selected or commented on:

Privacy: Your email address will only be used for sending these notifications.

What data structure is inside std::map in C++?

An associative container is std::map. The standard's ...READ MORE

answered May 31, 2022 in C++ by Damon
• 4,960 points • 838 views

0 votes

1 answer

In C++, what is a virtual base class?

When employing multiple inheritance, virtual base classes are used to prevent several "instances" of a particular class from appearing in an inheritance hierarchy. Consider the following example: class A { public: void Foo() {} ...READ MORE

answered Jun 10, 2022 in C++ by Damon
• 4,960 points • 516 views

0 votes

1 answer

What is the best way to use a HashMap in C++?

The ordered and unordered map containers (std::map and std::unordered map) are included in the standard library. The items in an ordered map are sorted by key, and insert and access are in O (log n). For ordered maps, the standard library often use red black trees. However, this is only an implementation detail. Insert and access are in O in an unordered map (1). It is simply another term for a hashtable. An illustration using (ordered) std::map: #include <map> #include <iostream> #include <cassert> int main(int argc, char ...READ MORE

answered Jun 10, 2022 in C++ by Damon
• 4,960 points • 831 views

0 votes

1 answer

What is a lambda expression in C++11?

In C++11, what is a lambda expression? A: It's the object of an autogenerated class with overloading operator() const under the hood. Closure is a type of object that is produced by the compiler. This 'closure' idea is similar to C++11's bind notion. Lambdas, on the other hand, usually produce better code. Full inlining is also possible with calls through closures. Q: When do you think I'd utilise one? A: Define "simple and tiny logic" and request that the compiler generate the code from the preceding question. You tell the compiler the expressions you wish to be inside the operator (). The compiler will produce everything else for you. Q: What kind of problem do they tackle that couldn't be solved before they were introduced? A: It's some form of syntactic sugar, like using operators instead of functions for custom add, subtract, and other operations... However, wrapping 1-3 lines of genuine logic to some classes, and so on, saves additional lines of needless code! Some engineers believe that if the number of lines is reduced, there is a lower likelihood of mistakes (which I agree with). Example of usage auto x = [=](int arg1){printf("%i", ...READ MORE

answered Jun 15, 2022 in C++ by Damon
• 4,960 points • 459 views

0 votes

1 answer

What is a Class and Object in C++?

A Class is like a blueprint, an ...READ MORE

answered Jun 21, 2022 in C++ by Damon
• 4,960 points • 495 views

0 votes

1 answer

Is 'If Else' statement indentation important or not in C++? [duplicate]

White space has no effect on the understanding of code in C and C++. That is not to say that the programmer should be unconcerned about its misuse. The easiest method to demonstrate what the above code truly represents is to specify all of the inferred braces directly, as seen below. The 'if then' or 'otherwise' clause only affects one line of code in the if statement with no brackets. This is one of the reasons why people strive to insist on 'proper coding standards' to guarantee that other people can clearly grasp the programmer's flow and meaning. while(c != cols) { ...READ MORE

answered Jun 27, 2022 in C++ by Damon
• 4,960 points • 555 views

0 votes

1 answer

C++ "Object" class

No, there is no generic base class&nb ...READ MORE

answered Jun 2, 2022 in C++ by Damon
• 4,960 points • 497 views

0 votes

0 answers

C++ pointer to objects

Is it always necessary in C++ to ...READ MORE

Jun 27, 2022 in C++ by Nicholas
• 7,760 points • 473 views

0 votes

1 answer

What is dynamic initialization of object in c++?

Dynamic initialization occurs when the initialization value is unknown at compile time. To initialise the variable, it is calculated at runtime. Example, int factorial(int n) { ...READ MORE