initializing a static array

[Simon Bürger via Digitalmars-d-learn]

I have a static array inside a struct which I would like to be 
initialized to all-zero like so

  struct Foo(size_t n)
  {
    double[n] bar = ... all zeroes ...
  }
(note that the default-initializer of double is nan, and not zero)

I tried

  double[n] bar = 0;  // does not compile
  double[n] bar = {0}; // neither does this
  double[n] bar = [0]; // compiles, but only sets the first 
element, ignoring the rest

Is there a good way to set them all to zero? The only way I can 
think of is using string-mixins to generate a string such as 
"[0,0,0,0]" with exactly n zeroes. But that seems quite an 
overkill for such a basic task. I suspect I might be missing 
something obvious here...