初始化非默认可构造对象的动态数组

The code below:

代码如下：

struct Foo
{
    Foo(int){} // no default constructor
};

int main()
{
    Foo* pFoo = new Foo[2]{1,2}; // OK in g++, fails in clang++!
    delete[] pFoo;
}   
struct Foo
{
    Foo(