Method map_err

postgres/src/iter.rs:29–35

(self, func: F)

    }

    fn map_err<F, O>(self, func: F) -> MapErr<Self, F>
    where
        F: Fn(Self::Err) -> O,
        Self: Sized,
    {
        MapErr { iter: self, func }
    }

    fn try_map<F, T, E>(self, func: F) -> Map<Self, F>
    where