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#![feature(external_doc)]
#![feature(const_fn)]
#![feature(const_mut_refs)]
#![feature(const_fn_fn_ptr_basics)]
#![feature(llvm_asm)]
#![feature(decl_macro)]
#![feature(const_panic)]
#![feature(const_generics)]
#![feature(slice_ptr_len)]
#![feature(unsafe_block_in_unsafe_fn)] // `unsafe fn` doesn't imply `unsafe {}`
#![deny(unsafe_op_in_unsafe_fn)]
#![doc(include = "./lib.md")]
#![no_std]

/// The [`r3::kernel::PortThreading`] implementation.
#[doc(hidden)]
pub mod threading {
    pub mod cfg;
    #[cfg(target_os = "none")]
    pub mod imp;
}

/// The tickful [`r3::kernel::PortTimer`] implementation based on SysTick.
#[doc(hidden)]
pub mod systick_tickful {
    pub mod cfg;
    #[cfg(target_os = "none")]
    pub mod imp;
}

pub use self::{systick_tickful::cfg::*, threading::cfg::*};

/// Used by `use_port!`
#[doc(hidden)]
#[cfg(target_os = "none")]
pub extern crate core;
/// Used by `use_port!`
#[doc(hidden)]
pub extern crate r3;
/// Used by `use_port!`
#[doc(hidden)]
#[cfg(target_os = "none")]
pub use cortex_m_rt;