Function lending_iterator::repeat_mut

pub fn repeat_mut<State>(state: State) -> RepeatMut<State>

Returns an infinite impl LendingIterator which lends &'next mut State items.

Useful as an entry-point for the other combinators and adapters.

It is also conceptually interesting since it features one of the simplest .next() implementations, as an “identity” function: |self| Some(self).

And yet, such a next() implementation would have been impossible to feature using an Iterator, since the returned item would not be allowed to keep borrowing from *self.

Example

• use ::lending_iterator::prelude::*;
  
  let iter =
      lending_iterator::repeat_mut("Globby")
          .take(7)
          .map_into_iter(|&mut globby| globby)
  ;
  
  assert_eq!(
      iter.collect::<Vec<_>>(),
      ["Globby", "Globby", "Globby", "Globby", "Globby", "Globby", "Globby"],
  );