The following code compiles with g++ 14.2 and clang++ 18.1, but fails with MSVC 17.10. class Base { public: using peak = Base; Base() = default; }; class Derived : public Base { protected: usin...

Am I doing this right? I'm trying to delegate a C++ class constructor as it's basically the same code repeating 3 times.. I read up on C++x11 and read that g++ 4.7.2 allows this but I'm not sure if...

[this question has been highly edited; pardon that, I've moved the edits into an answer below] From Wikipedia (subarticle included) on C++11: This [new delegating constructors feature] comes wi...

Actually the segmentation fault happens in another program I tried to compile which happens because of this behaviour. My question is: This is a bug or my fault? Reproducible in any way (even...

I have a class A with lots of data members, some of which are constant. All data members have proper copy constructors, so I want to default a copy constructor of my class: class A { public: A() ...

I've got a non-trivial type that owns multiple resources. How do I construct it in an exception safe manner? For example, here is a demo class X that holds an array of A: #include "A.h" class X ...

I know that there is no way to do this in pure C++, but I was wondering if it is possible to call a constructor from another constructor's initialization list in C++/CLI, same way one can do it in ...

struct D { virtual void m() const = 0; }; struct D1 : public virtual D { }; struct D2 : public virtual D { }; struct B : public D2 { B() { } B(int val) : B() { } void m() const { } }; str...

In this response, tloveless pointed out that it's possible in MSVC to use this->foo::foo(42); for constructor delegation to directly call a constructor: #include <iostream> struct foo { ...

i want to achieve a class like this: class A{ int a; int b; int c; A():a(),b(),c(){}; A(int ia,int ib,int ic=ia+ib):a(ia),b(ib),c(ic){}; //this is what i need }; I want the ic's default val...