> IIRC while Rust does allow you to switch up allocators, it doesn't let you mix and match your runtime with multiple allocators. (Each artifact can be linked with at most one allocator at a time.) There are applications where you want to have multiple allocation strategies for performance reasons.
So, sort of yes, and sort of no. Like, you can swap the global allocator, but there's no way to parameterize standard library stuff over anything but the given allocator. But for your own code, you can write and use allocators however you want. Arenas are often popular, for example.
So, sort of yes, and sort of no. Like, you can swap the global allocator, but there's no way to parameterize standard library stuff over anything but the given allocator. But for your own code, you can write and use allocators however you want. Arenas are often popular, for example.