# Struct core::cell::Cell [−] [src]

    pub struct Cell<T> {
        // some fields omitted
    }

A mutable memory location that admits only `Copy` data.

See the module-level documentation for more.

## Methods

### `impl<T: Copy> Cell<T>`

#### `const fn new(value: T) -> Cell<T>`

Creates a new `Cell` containing the given value.

# Examples

fn main() { use std::cell::Cell; let c = Cell::new(5); }

    use std::cell::Cell;

    let c = Cell::new(5);

#### `fn get(&self) -> T`

Returns a copy of the contained value.

# Examples

fn main() { use std::cell::Cell; let c = Cell::new(5); let five = c.get(); }

    use std::cell::Cell;

    let c = Cell::new(5);

    let five = c.get();

#### `fn set(&self, value: T)`

Sets the contained value.

# Examples

fn main() { use std::cell::Cell; let c = Cell::new(5); c.set(10); }

    use std::cell::Cell;

    let c = Cell::new(5);

    c.set(10);

#### `unsafe fn as_unsafe_cell(&self) -> &UnsafeCell<T>`

Unstable (`as_unsafe_cell` #27708)

Returns a reference to the underlying `UnsafeCell`.

# Safety

This function is `unsafe` because `UnsafeCell`'s field is public.

# Examples

#![feature(as_unsafe_cell)] fn main() { use std::cell::Cell; let c = Cell::new(5); let uc = unsafe { c.as_unsafe_cell() }; }

    #![feature(as_unsafe_cell)]

    use std::cell::Cell;

    let c = Cell::new(5);

    let uc = unsafe { c.as_unsafe_cell() };

## Trait Implementations

### `impl<T> Send for Cell<T> where T: Send`

### `impl<T: Copy> Clone for Cell<T>`

#### `fn clone(&self) -> Cell<T>`

#### `fn clone_from(&mut self, source: &Self)`

### `impl<T: Default + Copy> Default for Cell<T>`

#### `fn default() -> Cell<T>`

### `impl<T: PartialEq + Copy> PartialEq for Cell<T>`

#### `fn eq(&self, other: &Cell<T>) -> bool`

#### `fn ne(&self, other: &Rhs) -> bool`

### `impl<T: Eq + Copy> Eq for Cell<T>`

### `impl<T: Copy + Debug> Debug for Cell<T>`

#### `fn fmt(&self, f: &mut Formatter) -> Result`

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