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rustGenerator example in Rust


Generators are a powerful tool in Rust for creating iterators. Generators are functions that can be paused and resumed, allowing them to yield values one at a time.

Example code

fn generator() -> impl Iterator<Item = i32> {
    let mut i = 0;
    loop {
        yield i;
        i += 1;
    }
}

Output example

0
1
2
3
...

Code explanation

  • fn generator() -> impl Iterator<Item = i32>: This declares a function named generator that returns an iterator of type i32.
  • let mut i = 0: This declares a mutable variable i and initializes it to 0.
  • yield i: This pauses the function and returns the value of i.
  • i += 1: This increments i by 1.
  • loop { ... }: This creates an infinite loop that will keep yielding values until it is manually stopped.

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