std::collections::hash_map::DefaultHasher - Rust
Description: API documentation for the Rust `DefaultHasher` struct in crate `std`.
Keywords: rust, rustlang, rust-lang, DefaultHasher

# Struct std::collections::hash_map::DefaultHasher 1.13.0 [−] [src]

    pub struct DefaultHasher(_);

The default `Hasher` used by `RandomState`.

The internal algorithm is not specified, and so it and its hashes should not be relied upon over releases.

## Methods

### `impl DefaultHasher`
[src]

#### `pub fn new() -> DefaultHasher`
[src]

Creates a new `DefaultHasher`.

This hasher is not guaranteed to be the same as all other `DefaultHasher` instances, but is the same as all other `DefaultHasher` instances created through `new` or `default`.

## Trait Implementations

### `impl Clone for DefaultHasher`
[src]

#### `fn clone(&self) -> DefaultHasher`
[src]

Returns a copy of the value. Read more

#### `fn clone_from(&mut self, source: &Self)`
1.0.0
[src]

Performs copy-assignment from `source`. Read more

### `impl Debug for DefaultHasher`
[src]

#### `fn fmt(&self, __arg_0: &mut Formatter) -> Result`
[src]

Formats the value using the given formatter.

### `impl Default for DefaultHasher`
[src]

#### `fn default() -> DefaultHasher`
[src]

Creates a new `DefaultHasher` using `new`. See its documentation for more.

### `impl Hasher for DefaultHasher`
[src]

#### `fn write(&mut self, msg: &[u8])`
[src]

Writes some data into this `Hasher`. Read more

#### `fn finish(&self) -> u64`
[src]

Returns the hash value for the values written so far. Read more

#### `fn write_u8(&mut self, i: u8)`
1.3.0
[src]

Writes a single `u8` into this hasher.

#### `fn write_u16(&mut self, i: u16)`
1.3.0
[src]

Writes a single `u16` into this hasher.

#### `fn write_u32(&mut self, i: u32)`
1.3.0
[src]

Writes a single `u32` into this hasher.

#### `fn write_u64(&mut self, i: u64)`
1.3.0
[src]

Writes a single `u64` into this hasher.

#### `fn write_u128(&mut self, i: u128)`
[src]

🔬 This is a nightly-only experimental API. (`i128` #35118)

Writes a single `u128` into this hasher.

#### `fn write_usize(&mut self, i: usize)`
1.3.0
[src]

Writes a single `usize` into this hasher.

#### `fn write_i8(&mut self, i: i8)`
1.3.0
[src]

Writes a single `i8` into this hasher.

#### `fn write_i16(&mut self, i: i16)`
1.3.0
[src]

Writes a single `i16` into this hasher.

#### `fn write_i32(&mut self, i: i32)`
1.3.0
[src]

Writes a single `i32` into this hasher.

#### `fn write_i64(&mut self, i: i64)`
1.3.0
[src]

Writes a single `i64` into this hasher.

#### `fn write_i128(&mut self, i: i128)`
[src]

🔬 This is a nightly-only experimental API. (`i128` #35118)

Writes a single `i128` into this hasher.

#### `fn write_isize(&mut self, i: isize)`
1.3.0
[src]

Writes a single `isize` into this hasher.

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