Why the need for an only const ref?

[Janice Caron]

On 12/1/07, Derek Parnell <derek at psych.ward> wrote:
> What is a D code example that catches inadverant reallocations at compile
> time?

Just don't do it. Head const is a purely local thing. The designer of
a function knows what it's supposed to do, and if they make it do
something stupid, it's a bug

>    char[] Buffer = new char[MAXBUFSIZE];
>    . . .
>    Buffer ~= "abc";   // Oops. This is not allowed because
>                       // the designer wanted to avoid
>                       // excess memory allocations.

Const is transitive in D. Walter says that's not going to change. You
just have to deal with it.