Struct rand::rngs::ThreadRng[][src]

pub struct ThreadRng { /* fields omitted */ }
This is supported on crate features std and std_rng only.
Expand description

A reference to the thread-local generator

An instance can be obtained via thread_rng or via ThreadRng::default(). This handle is safe to use everywhere (including thread-local destructors) but cannot be passed between threads (is not Send or Sync).

ThreadRng uses the same PRNG as StdRng for security and performance and is automatically seeded from OsRng.

Unlike StdRng, ThreadRng uses the ReseedingRng wrapper to reseed the PRNG from fresh entropy every 64 kiB of random data as well as after a fork on Unix (though not quite immediately; see documentation of ReseedingRng). Note that the reseeding is done as an extra precaution against side-channel attacks and mis-use (e.g. if somehow weak entropy were supplied initially). The PRNG algorithms used are assumed to be secure.

Trait Implementations

Returns a copy of the value. Read more

Performs copy-assignment from source. Read more

Formats the value using the given formatter. Read more

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

Return the next random u32. Read more

Return the next random u64. Read more

Fill dest with random data. Read more

Fill dest entirely with random data. Read more

Auto Trait Implementations

Blanket Implementations

Gets the TypeId of self. Read more

Immutably borrows from an owned value. Read more

Mutably borrows from an owned value. Read more

Performs the conversion.

Performs the conversion.

The resulting type after obtaining ownership.

Creates owned data from borrowed data, usually by cloning. Read more

🔬 This is a nightly-only experimental API. (toowned_clone_into)

recently added

Uses borrowed data to replace owned data, usually by cloning. Read more

The type returned in the event of a conversion error.

Performs the conversion.

The type returned in the event of a conversion error.

Performs the conversion.