Sometimes, this means that it is impossible to use Rust because it is practically impossible to replicate the ecosystem support. Whatever problem you want to solve, there’s most likely a ton of libraries by people that have had the same exact problem. You can either edit the presentation (mutable ref), or present it to any amount of people (immutable ref), but if it’s presented while it’s being edited, heads might roll in the respective department.Ĭ and C++ have been around for decades. Think of data referenced as a Powerpoint presentation. Here’s an intuitive metaphor that I shamelessly borrow from Rust explained using easy English. one mutable reference (read-and-write).multiple immutable references (read-only),.That’s why the compiler enforces a rule for referencing things. Using these references doesn’t transfer ownership, but lets us either read the variable (immutable reference or &) or even mutate it (mutable reference or mut &).īut there are limits on references, since having multiple mutable references would amount to the same thing as having multiple owners. To solve that, we can borrow variables by creating references to them. Now, moving the ownership around manually is quite troublesome since you always need to make sure to give it back.
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