Initializing a dynamic array of non-default constructible objects

问题

The code below:

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

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

compiles in gcc, but fails in clang. Is the code above syntactically correct?

回答1:

I'll turn @T.C. comment into an answer, so everyone sees what's going on without having to read through all of the comments.

This is a clang bug, the code should be accepted: http://llvm.org/bugs/show_bug.cgi?id=22924

Related: http://wg21.link/cwg2102

来源：https://stackoverflow.com/questions/37336319/initializing-a-dynamic-array-of-non-default-constructible-objects