pub struct ThinBox<T: ?Sized> { /* private fields */ }
🔬 This is a nightly-only experimental API. (thin_box #92791)
Expand description

ThinBox.

A thin pointer for heap allocation, regardless of T.

Examples

#![feature(thin_box)]
use std::boxed::ThinBox;

let five = ThinBox::new(5);
let thin_slice = ThinBox::<[i32]>::new_unsize([1, 2, 3, 4]);

use std::mem::{size_of, size_of_val};
let size_of_ptr = size_of::<*const ()>();
assert_eq!(size_of_ptr, size_of_val(&five));
assert_eq!(size_of_ptr, size_of_val(&thin_slice));
Run

Trait Implementations

Formats the value using the given formatter. Read more

The resulting type after dereferencing.

Dereferences the value.

Mutably dereferences the value.

Formats the value using the given formatter. Read more

Executes the destructor for this type. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Returns the argument unchanged.

Calls U::from(self).

That is, this conversion is whatever the implementation of From<T> for U chooses to do.

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.