Visual C ++ 14 CTP3：c ++ 11继承构造函数bug？

Question

The following code snippet builds perfectly fine under Clang 3.4/3.5 (Xcode 5/6), but throws out the error under Visual C++ 14 CTP3:

1>------ Build started: Project: InheritingConstructor, Configuration:
Debug Win32 ------ 1> inheritingconstructor.cpp(60): error C2661:
'D::D': no overloaded function takes 2 arguments
========== Build: 0 succeeded, 1 failed, 0 up-to-date, 0 skipped ==========

The code does stress the compiler a bit by attempting to inherit a template constructor from the base class, maybe that's where Visual C++ fails again in the competition? Or I am hitting some grey area thus undefined behavior in the standard?

#include "stdafx.h" // comment out this line for Xcode build
#include <iostream>
#include <type_traits>

template <typename X>
struct B
{
    int i;
    B(int i_) : i(i_) {}

    template < typename T, typename = typename std::enable_if<
        std::is_same<T, X>::value >::type >
    B(const T*, const T*) : i(0) {}
};

struct D : B<D>
{
    using B<D>::B; // inherit constructors from B
};

int main(int argc, const char * argv[]) {
    // insert code here...
    D d((D*)nullptr, (D*)nullptr);
    std::cout << "Hello, World!\n";
    return 0;
}

Answer 1

There's nothing wrong with your code from a standard compliance perspective.

Inheriting constructors are not implemented in VC++2013 LINK .

However, as this LINK suggests this kind of functionality is implemented since VC++2014 CTP 1.

Digging up a little bit, I found that exactly the same bug with the same example was reported this morning LINK .

Bottom line: This is a VC++2014 bug that it has already been reported.