On Thursday, 17 November 2016 at 17:29:20 UTC, Nordlöw wrote:
On Thursday, 17 November 2016 at 17:27:01 UTC, Stefan Koch wrote:
It allows encapsulating unsafe operations in safely-callable wrappers.

So is this a limitation in Rust? If so, could you give a more concrete D code example that cannot be implemented with only two safety levels?

Try to implement a safe memory allocator with only two levels.

Memory is inherently unsafe. But it can be treated in a safe way.
A language that does not allow you to express a middle ground will have a lot of unsafe code that could arguably be seen as safe.

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