# WriteOnly in volatile - Rust
A volatile wrapper which only allows write operations.
Keywords: rust, rustlang, rust-lang, WriteOnly

# Struct volatile::WriteOnly

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    pub struct WriteOnly<T: Copy>(_);

Expand description

A volatile wrapper which only allows write operations.

The size of this struct is the same as the contained type.

## Implementations

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### impl<T: Copy> WriteOnly<T>

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#### pub fn new(value: T) -> WriteOnly<T>

Constructs a new write only volatile wrapper around the given value.

    use volatile::WriteOnly;

    let value = WriteOnly::new(0u32);

##### Panics

This function never panics.

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#### pub fn write(&mut self, value: T)

Performs a volatile write of value `value` into the contained value. Functionally identical to `Volatile::write`.

    use volatile::WriteOnly;

    let mut value = WriteOnly::new(0u32);

    value.write(42u32);

##### Panics

This method never panics.

## Trait Implementations

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### impl<T: Default + Copy> Default for WriteOnly<T>

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#### fn default() -> WriteOnly<T>

Returns the “default value” for a type. Read more

## Auto Trait Implementations

### impl<T> RefUnwindSafe for WriteOnly<T> where
T: RefUnwindSafe,

### impl<T> Send for WriteOnly<T> where
T: Send,

### impl<T> Sync for WriteOnly<T> where
T: Sync,

### impl<T> Unpin for WriteOnly<T> where
T: Unpin,

### impl<T> UnwindSafe for WriteOnly<T> where
T: UnwindSafe,

## Blanket Implementations

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### impl<T> Any for T where
T: 'static + ?Sized,

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#### fn type_id(&self) -> TypeId

Gets the `TypeId` of `self`. Read more

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### impl<T> Borrow<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow(&self) -> &T

Immutably borrows from an owned value. Read more

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### impl<T> BorrowMut<T> for T where
T: ?Sized,

const: unstable · source

#### fn borrow_mut(&mut self) -> &mut T

Mutably borrows from an owned value. Read more

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### impl<T> From<T> for T

const: unstable · source

#### fn from(t: T) -> T

Returns the argument unchanged.

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### impl<T, U> Into<U> for T where
U: From<T>,

const: unstable · source

#### fn into(self) -> U

Calls `U::from(self)`.

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

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### impl<T, U> TryFrom<U> for T where
U: Into<T>,

#### type Error = Infallible

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_from(value: U) -> Result<T, <T as TryFrom<U>>::Error>

Performs the conversion.

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### impl<T, U> TryInto<U> for T where
U: TryFrom<T>,

#### type Error = <U as TryFrom<T>>::Error

The type returned in the event of a conversion error.

const: unstable · source

#### fn try_into(self) -> Result<U, <U as TryFrom<T>>::Error>

Performs the conversion.