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use std::mem; #[cfg(target_pointer_width = "64")] mod inner { pub use std::u32; pub const HALF_WORD_MAX: u32 = u32::MAX; pub type HalfWord = u32; pub type Word = u64; } #[cfg(target_pointer_width = "32")] mod inner { pub use std::u16; pub const HALF_WORD_MAX: u16 = u16::MAX; pub type HalfWord = u16; pub type Word = u32; } pub use self::inner::*; pub const WORD_SIZE: usize = mem::size_of::<usize>();