# Function std::iter::from_generator

source ·

    pub fn from_generator<G>(generator: G) -> FromGenerator<G>where
        G: Generator<(), Return = ()> + Unpin,

🔬This is a nightly-only experimental API. (`iter_from_generator` #43122)
Expand description

Creates a new iterator where each iteration calls the provided generator.

Similar to `iter::from_fn`.

## Examples

    #![feature(generators)]
    #![feature(iter_from_generator)]

    let it = std::iter::from_generator(|| {
        yield 1;
        yield 2;
        yield 3;
    });
    let v: Vec<_> = it.collect();
    assert_eq!(v, [1, 2, 3]);

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