Trait std::hash::Hasher 1.0.0
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pub trait Hasher {
fn finish(&self) -> u64;
fn write(&mut self, bytes: &[u8]);
fn write_u8(&mut self, i: u8) { ... }
fn write_u16(&mut self, i: u16) { ... }
fn write_u32(&mut self, i: u32) { ... }
fn write_u64(&mut self, i: u64) { ... }
fn write_u128(&mut self, i: u128) { ... }
fn write_usize(&mut self, i: usize) { ... }
fn write_i8(&mut self, i: i8) { ... }
fn write_i16(&mut self, i: i16) { ... }
fn write_i32(&mut self, i: i32) { ... }
fn write_i64(&mut self, i: i64) { ... }
fn write_i128(&mut self, i: i128) { ... }
fn write_isize(&mut self, i: isize) { ... }
}A trait for hashing an arbitrary stream of bytes.
Instances of Hasher usually represent state that is changed while hashing
data.
Hasher provides a fairly basic interface for retrieving the generated hash
(with finish), and writing integers as well as slices of bytes into an
instance (with write and write_u8 etc.). Most of the time, Hasher
instances are used in conjunction with the Hash trait.
Examples
use std::collections::hash_map::DefaultHasher; use std::hash::Hasher; let mut hasher = DefaultHasher::new(); hasher.write_u32(1989); hasher.write_u8(11); hasher.write_u8(9); hasher.write(b"Huh?"); println!("Hash is {:x}!", hasher.finish());Run
Required Methods
fn finish(&self) -> u64
Completes a round of hashing, producing the output hash generated.
Examples
use std::collections::hash_map::DefaultHasher; use std::hash::Hasher; let mut hasher = DefaultHasher::new(); hasher.write(b"Cool!"); println!("Hash is {:x}!", hasher.finish());Run
fn write(&mut self, bytes: &[u8])
Provided Methods
fn write_u8(&mut self, i: u8)1.3.0
Writes a single u8 into this hasher.
fn write_u16(&mut self, i: u16)1.3.0
Writes a single u16 into this hasher.
fn write_u32(&mut self, i: u32)1.3.0
Writes a single u32 into this hasher.
fn write_u64(&mut self, i: u64)1.3.0
Writes a single u64 into this hasher.
fn write_u128(&mut self, i: u128)
Writes a single u128 into this hasher.
fn write_usize(&mut self, i: usize)1.3.0
Writes a single usize into this hasher.
fn write_i8(&mut self, i: i8)1.3.0
Writes a single i8 into this hasher.
fn write_i16(&mut self, i: i16)1.3.0
Writes a single i16 into this hasher.
fn write_i32(&mut self, i: i32)1.3.0
Writes a single i32 into this hasher.
fn write_i64(&mut self, i: i64)1.3.0
Writes a single i64 into this hasher.
fn write_i128(&mut self, i: i128)
Writes a single i128 into this hasher.
fn write_isize(&mut self, i: isize)1.3.0
Writes a single isize into this hasher.
Implementors
impl Hasher for SipHasherimpl Hasher for SipHasher24impl Hasher for SipHasher13impl Hasher for DefaultHasher