taproot-c-scape 0.22.5

A libc bottom-half implementation in Rust (c-scape fork for the taproot libc)
Documentation 
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//! `core::cell::SyncUnsafeCell` is still unstable (rust#95439); this is
//! the same ten lines, locally. delete when the std type stabilizes.
use core::cell::UnsafeCell;

#[repr(transparent)]
pub struct SyncUnsafeCell<T: ?Sized>(UnsafeCell<T>);

unsafe impl<T: ?Sized> Sync for SyncUnsafeCell<T> {}

impl<T> SyncUnsafeCell<T> {
    pub const fn new(value: T) -> Self {
        Self(UnsafeCell::new(value))
    }
}

impl<T: ?Sized> SyncUnsafeCell<T> {
    pub const fn get(&self) -> *mut T {
        self.0.get()
    }
}