How do I create a class object in C++? - Stack Overflow
A constructor must exist in order to create an object. The constructor could be defined implicitly by the compiler under some conditions if you do not provide any, but eventually the constructor …
What is a Class and Object in C++? - Stack Overflow
In object-oriented programming , a class is a template definition of the method s and variable s in a particular kind of object . ... Subclasses can also define their own methods and variables that …
How do I check if an object's type is a particular subclass in C++?
The point here is that the address of the virtual tables are fixed and a simple comparrison will decide if a virtual object is an instanceof a virtual class. Since cpp doesnt give us a standard …
C++ class object pointers and accessing member functions
Jul 7, 2012 · I'm bit new to C++ and try to work things with Qt and came across this confusing thing: The concepts on various tutorials state something like: Class *obj; *obj - will display the …
c++ - How do you create a static class? - Stack Overflow
If you're looking for a way of applying the static keyword to a class, like you can in C# for example, then you won't be able to without using Managed C++. But the looks of your sample, …
Finding the type of an object in C++ - Stack Overflow
Dec 9, 2008 · I have a class A and another class that inherits from it, B. I am overriding a function that accepts an object of type A as a parameter, so I have to accept an A. However, I later call …
How do you determine the size of an object in C++?
As others have said, the member functions of your class themselves do not take up "per object" space, but the existence of virtual functions in that class's interface generally implies the …
Different ways of initializing an object in c++ - Stack Overflow
Apr 12, 2018 · 102 The difference in initialization lies not only in form it takes, but also in type of entity which is being initialized. In this case it's a class-type object with a defined default …
Why should I use a pointer rather than the object itself?
Mar 3, 2014 · To use Object& in a piece of code, it's sufficient to say class Object;, i.e. to use a forward-declaration. You need to interface with a C library or a C-style library.
c++ - Is it idiomatic to store references members in a class, and …
One useful scenario for references as class members is configuring a long living object. You have a class which monitors measurement of pressure, say, in zone1. Most of the time you are …