Zero-length C-array binds to pointer type

Question

I recently wrote a function template which takes a reference to a C-array:

template 
void foo(T(&c_array)[N]);

Answer 1

Zero-length arrays do not exist in C++. However if they did, here is how you could handle the case:

template 
struct disable_if;

template 
struct disable_if
{
    typedef T type;
};

template 
typename disable_if::type foo(T(&c_array)[N])
{
    std::cout << "inside template\n";
}