# Struct std::io::Initializer[−][src]

    pub struct Initializer(_);

🔬 This is a nightly-only experimental API. (`read_initializer` #42788)

A type used to conditionally initialize buffers passed to `Read` methods.

## Methods

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`impl Initializer`

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`pub fn zeroing() -> Initializer`

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🔬 This is a nightly-only experimental API. (`read_initializer` #42788)

Returns a new `Initializer` which will zero out buffers.

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`pub unsafe fn nop() -> Initializer`

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🔬 This is a nightly-only experimental API. (`read_initializer` #42788)

Returns a new `Initializer` which will not zero out buffers.

# Safety

This may only be called by `Read`ers which guarantee that they will not read from buffers passed to `Read` methods, and that the return value of the method accurately reflects the number of bytes that have been written to the head of the buffer.

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`pub fn should_initialize(&self) -> bool`

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🔬 This is a nightly-only experimental API. (`read_initializer` #42788)

Indicates if a buffer should be initialized.

####

`pub fn initialize(&self, buf: &mut [u8])`

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🔬 This is a nightly-only experimental API. (`read_initializer` #42788)

Initializes a buffer if necessary.

## Trait Implementations

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`impl Debug for Initializer`

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

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Formats the value using the given formatter. Read more

## Auto Trait Implementations

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`impl Send for Initializer`

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`impl Sync for Initializer`

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