T.init for static arrays?

[Steven Schveighoffer]

On Sat, 13 Mar 2010 15:13:26 -0500, Walter Bright  
<newshound1 at digitalmars.com> wrote:

> Currently, given an array:
>
>     alias T[3] A;
>     A a;
>
> the default initializer for A, A.init, is T.init. It is done this way  
> for memory efficiency, as:
>
>     a = A.init;
>
> doesn't need to create an array for the rvalue. But it does cause  
> generic programming problems, especially with the advent of static  
> arrays now being passed by value rather than by ref.
>
> So, I propose changing A.init from being T.init to being [T.init,  
> T.init, T.init].
>
> What do you think?

Is that going to allocate heap data as the current array literal does?  If  
so, it's a step backwards.  It needs to be ROM data.

-Steve