halfbrown 0.4.0

Multi backend HashMap for higher performance on different key space sizes
Documentation 
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#[cfg(not(feature = "arraybackend"))]
pub(crate) type VecDrain<'a, T, const N: usize> = std::vec::Drain<'a, T>;
#[cfg(feature = "arraybackend")]
pub(crate) type VecDrain<'a, T, const N: usize> = arrayvec::Drain<'a, T, N>;

#[cfg(not(feature = "arraybackend"))]
pub(crate) type VecIntoIter<T, const N: usize> = std::vec::IntoIter<T>;
#[cfg(feature = "arraybackend")]
pub(crate) type VecIntoIter<T, const N: usize> = arrayvec::IntoIter<T, N>;