What is the difference betweenandIntuitively, I would never use the second version but I am not sure there much difference. It feels to me that the second line is simply a default constructor followed by a move assignment operator but I am really not sure.
Say I have a struct (or class) with a dynamic array, its length, and a constructor:I assume everything so far is legal: this is how I would write it (although it maybe not be the only way to do things), but I have seen the following code, that somewhat seems...
Consider following code:This works, because compiler can generate proper constructor for me. But if I change struct C to this:
I can do this:This will compile fine, my counter result is 21. However when I try to create the Boo object passing the constructor argument instead of an integer literal I get a compile error:
Following example shows the crux of the problem. I need to initialize const members of a class. This can only be done in the initializer-list and not in constructor body. I want to assert or throw an error if input to the constructor is invalid, that is, if the vector...
Which is the correct* terminology?PS: They all talk about data member initializer/ation lists.*If correct is ambiguous to you, you can fall back to the term used be the Standard.
This question already has an answer here:My question is about how the member data with initializer get initialized where there is also a default argument in the constructor.
Class.newInstance was deprecated in Java 9:can be replaced byThe problem is that getDeclaredConstructor returns any constructor without regarding the access level.
Consider following code:How can I initialize a Color object in one line? In my real case scenario, Color struct can't be change (for example to use std::array instead of C-Style array).
I have two variables. And should make two constructors.First:Second:When I initialise this.clazz = clazz in the second constructor, I have a problem like have been assigned to. How correct write initialisation for clazz if I must use this(size)?