Trait std::marker::Sized
[−]
[src]
pub trait Sized { }
Types with a constant size known at compile-time.
All type parameters which can be bounded have an implicit bound of Sized
. The special syntax
?Sized
can be used to remove this bound if it is not appropriate.
struct Foo<T>(T); struct Bar<T: ?Sized>(T); // struct FooUse(Foo<[i32]>); // error: Sized is not implemented for [i32] struct BarUse(Bar<[i32]>); // OK