[−][src]Struct tao_of_rust::ch02::structs::Empty
单元结构体
Basic usage:
struct Empty; // 等价于 struct Empty {} struct RangeFull; // 标准库源码中RangeFull就是一个单元结构体 assert_eq!((..), std::ops::RangeFull); // RangeFull就是(..),表示全范围 let x = Empty; println!("{:p}", &x as *const _); let y = x; println!("{:p}", &y as *const _); let z = Empty; println!("{:p}", &z as *const _);Run
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impl<T> From for T
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impl<T> From for T
impl<T, U> Into for T where
U: From<T>,
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impl<T, U> Into for T where
U: From<T>,
impl<T, U> TryFrom for T where
T: From<U>,
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impl<T, U> TryFrom for T where
T: From<U>,
type Error = !
🔬 This is a nightly-only experimental API. (
try_from
)The type returned in the event of a conversion error.
fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
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fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>
impl<T> Borrow for T where
T: ?Sized,
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impl<T> Borrow for T where
T: ?Sized,
impl<T> Any for T where
T: 'static + ?Sized,
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impl<T> Any for T where
T: 'static + ?Sized,
fn get_type_id(&self) -> TypeId
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fn get_type_id(&self) -> TypeId
impl<T> BorrowMut for T where
T: ?Sized,
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impl<T> BorrowMut for T where
T: ?Sized,
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impl<T, U> TryInto for T where
U: TryFrom<T>,
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impl<T, U> TryInto for T where
U: TryFrom<T>,