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macro_rules! signed_impl {
($($ty:ident)*) => {
$(
impl Sign for $ty {
const SIGNED: bool = true;
}
)*
};
}
macro_rules! unsigned_impl {
($($ty:ident)*) => {
$(
impl Sign for $ty {
const SIGNED: bool = false;
}
)*
};
}
pub trait Sign {
const SIGNED: bool;
}
unsigned_impl!(
u8
u16
u32
u64
u128
usize
);
signed_impl!(
i8
i16
i32
i64
i128
isize
);