On Wednesday, 2 August 2023 at 13:27:50 UTC, Steven Schveighoffer wrote:
On 8/2/23 7:40 AM, Nick Treleaven wrote:
Presumably an allocation like `new T` (for a type with a @safe constructor) can be made anywhere a call to `GC.collect` can be made, which may trigger a collection. So why isn't `GC.collect` marked @safe?

It should be. Maybe historical reasons?

One possible (but wrong) reason is that destructors can be unsafe. But you are correct in that allocation can cause a collection.

OK, thanks. I've made a pull to add `@safe` for enable, disable, collect, minimize:
https://github.com/dlang/dmd/pull/15493/files

Now I'm wondering why those functions are marked `pure` - they must affect the GC's bookkeeping state.

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