Bartosz Milewski wrote:
Walter Bright Wrote:
BCS wrote:
would you agree that it is not something the programer can predict in
advance?
He can, but it is not reasonable to expect him to. But it's still
deterministic.
I've been following this discussion about determinism and I think it addresses the problem from the wrong point of view, that of a specific implementation.
My concern is the semantics of the language. As it is defined right now, a
conforming implementation is free to use a quantum random number generator to
decide whether to re-allocate or not. Is it likely? I don't think so; but the
non-determinism is part of the semantics of D arrays.
It would not be difficult to specify in the language definition (and
TDPL) that behavior is deterministic for a given platform. I think this
has some impact on the freedom of the memory allocator, but probably not
major.
Andrei
