Initialization of memory allocated with stackalloc

Question

If I'm allocating memory with stackalloc in C#, is that memory initialized (with 0)?
The documentation doesn't speak of that and only tells that the correct amount is reserved.

In my tests such memory defaulted to 0, but that doesn't mean it's guaranteed though.

Answer 1

From the spec:

18.8 Stack allocation

The content of the newly allocated memory is undefined.