How to initialize array of classes with deleted copy constructor (C++11)

Question

The existing question on Why can't I initialise an array of objects if they have private copy constructors? specifically refers to C++03. I know from that question that what I am trying to do is not allowed in C++03 but I thought that it should be possible in C++11

I have a non-movable class (call it Child) and I need to initialize an array of Child in the constructor of another class (call it Parent). By "non-movable" I mean that the address of a Child object has to remain the same during that object's lifetime. What is the correct way to do this?

With C++11 I've tried the following:

class Child
{
public:
    Child (int x) {}
    ~Child () {}

    Child (const Child &) = delete;
};

class Parent
{
public:
    Parent () : children {{5}, {7}} {}

private:
    Child children[2];
};

This code compiles fine with Clang 3.5.0, but GCC 4.9.1 complains that I am trying to use the deleted copy constructor:

test.cc: In constructor ‘Parent::Parent()’:
test.cc:13:35: error: use of deleted function ‘Child::Child(const Child&)’
     Parent () : children {{5}, {7}} {}
                                   ^
test.cc:7:5: note: declared here
     Child (const Child &) = delete;
     ^

I've read about the difference between copy-initialization and direct-initialization (here and here, for example), and I want to avoid calling the copy constructor by using direct-initialization. Am I getting the syntax wrong? Is this a bug in GCC? Or is what I am trying to do just not possible?

Answer 1

I agree with the comments that this seems to be a GCC bug (reported as 63707).

It only fails to compile when the type in the array has a user-defined destructor, which doesn't make sense to me.