st3 0.3.0

A very fast lock-free, bounded, work-stealing LIFO queue.
Documentation 
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#[cfg(st3_loom)]
#[allow(unused_imports)]
pub(crate) mod sync {
    pub(crate) mod atomic {
        #[cfg(not(any(target_pointer_width = "64", feature = "long_counter")))]
        pub(crate) use loom::sync::atomic::AtomicU16;
        pub(crate) use loom::sync::atomic::AtomicU32;
        #[cfg(any(target_pointer_width = "64", feature = "long_counter"))]
        pub(crate) use loom::sync::atomic::AtomicU64;
    }
}
#[cfg(not(st3_loom))]
#[allow(unused_imports)]
pub(crate) mod sync {
    pub(crate) mod atomic {
        #[cfg(not(any(target_pointer_width = "64", feature = "long_counter")))]
        pub(crate) use std::sync::atomic::AtomicU16;
        pub(crate) use std::sync::atomic::AtomicU32;
        #[cfg(any(target_pointer_width = "64", feature = "long_counter"))]
        pub(crate) use std::sync::atomic::AtomicU64;
    }
}

#[cfg(st3_loom)]
pub(crate) mod cell {
    pub(crate) use loom::cell::UnsafeCell;
}
#[cfg(not(st3_loom))]
pub(crate) mod cell {
    #[derive(Debug)]
    pub struct UnsafeCell<T>(std::cell::UnsafeCell<T>);

    #[allow(dead_code)]
    impl<T> UnsafeCell<T> {
        pub(crate) fn new(data: T) -> UnsafeCell<T> {
            UnsafeCell(std::cell::UnsafeCell::new(data))
        }
        pub(crate) fn with<R>(&self, f: impl FnOnce(*const T) -> R) -> R {
            f(self.0.get())
        }
        pub(crate) fn with_mut<R>(&self, f: impl FnOnce(*mut T) -> R) -> R {
            f(self.0.get())
        }
    }
}