# Struct std::collections::hash_map::RandomState 1.7.0[−][src]

    pub struct RandomState { /* fields omitted */ }

`RandomState` is the default state for `HashMap` types.

A particular instance `RandomState` will create the same instances of `Hasher`, but the hashers created by two different `RandomState` instances are unlikely to produce the same result for the same values.

# Examples

    use std::collections::HashMap;
    use std::collections::hash_map::RandomState;

    let s = RandomState::new();
    let mut map = HashMap::with_hasher(s);
    map.insert(1, 2);Run

## Methods

###

`impl RandomState`

[src]

####

`pub fn new() -> RandomState`

[src]

Constructs a new `RandomState` that is initialized with random keys.

# Examples

    use std::collections::hash_map::RandomState;

    let s = RandomState::new();Run

## Trait Implementations

###

`impl Clone for RandomState`

[src]

####

`fn clone(&self) -> RandomState`

[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 BuildHasher for RandomState`

[src]

#### `type Hasher = DefaultHasher`

Type of the hasher that will be created.

####

`fn build_hasher(&self) -> DefaultHasher`

[src]

Creates a new hasher. Read more

###

`impl Default for RandomState`

[src]

####

`fn default() -> RandomState`

[src]

Constructs a new `RandomState`.

###

`impl Debug for RandomState`

1.16.0
[src]

####

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

[src]

Formats the value using the given formatter. Read more

## Auto Trait Implementations

###

`impl Send for RandomState`

###

`impl Sync for RandomState`

# Help

## Keyboard Shortcuts

`?`
  Show this help dialog
`S`
  Focus the search field
`↑`
  Move up in search results
`↓`
  Move down in search results
`↹`
  Switch tab
`⏎`
  Go to active search result
`+`
  Expand all sections
`-`
  Collapse all sections

## Search Tricks

Prefix searches with a type followed by a colon (e.g. `fn:`) to restrict the search to a given type.

Accepted types are: `fn`, `mod`, `struct`, `enum`, `trait`, `type`, `macro`, and `const`.

Search functions by type signature (e.g. `vec -> usize` or `* -> vec`)

Search multiple things at once by splitting your query with comma (e.g. `str,u8` or `String,struct:Vec,test`)