Recently, I came across code like this: class NeedsFactoryForPublicCreation { private: struct Accessor { // Enable in order to make the compile failing (expected behavior) // explicit Accessor() = default; }; public: explicit NeedsFactoryForPublicCreation(Accessor) {} // This was intended to be the only public construction way static NeedsFactoryForPublicCreation create() { NeedsFactoryForPublicCreation result{Accessor()}; // … Do ..
Category : access-specifier
I am compiling a class, the complete program to which is given below: #include<iostream> using namespace std; class Test{ public: Test() { cout<<"Test variable created…n"; // accessing width variable in constructor cout<<"Width is "<<width<<".n"; } void setHeight(int h) { height = h; } void printHeight() { cout<<"Height is "<<height<<" meters.n"; } int width = 6; ..
While trying to get some old software to compile with clang, I encountered some code similar to the following: class OuterClass { private: template <class T> class InnerClass {}; }; template <class T> class OtherClass {}; template <class T> class OtherClass<OuterClass::InnerClass<T>> {}; My understanding of this code is that the template class OtherClass is specialized ..
While trying to get some old software to compile with clang, I encountered some code similar to the following: class OuterClass { private: template <class T> class InnerClass {}; }; template <class T> class OtherClass {}; template <class T> class OtherClass<OuterClass::InnerClass<T>> {}; My understanding of this code is that the template class OtherClass is specialized ..
I created a class Cupe with the following header file #include "RGB.h" using namespace std; #pragma once class Cupe { public: Cupe(RGB color, double length); double getVol(double length); private: double length; RGB color; }; and it worked properly at the main.cpp file was built. however, I needed to print out the variable length in the ..
My question is about constructors in OOP(C++). When I define default constructor in a class as private and when I initialize an object of that class in main as default then error occurs that default constructor is inaccessible. It’s fine. But then I also make default argument constructor in Public section and when I initialize ..
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