Trait digest::XofReader

source · 
pub trait XofReader {
    // Required method
    fn read(&mut self, buffer: &mut [u8]);

    // Provided method
    fn read_boxed(&mut self, n: usize) -> Box<[u8]> { ... }
}
Expand description

Trait for reader types which are used to extract extendable output from a XOF (extendable-output function) result.

Required Methods§

source

fn read(&mut self, buffer: &mut [u8])

Read output into the buffer. Can be called an unlimited number of times.

Provided Methods§

source

fn read_boxed(&mut self, n: usize) -> Box<[u8]>

Read output into a boxed slice of the specified size.

Can be called an unlimited number of times in combination with read.

Box<[u8]> is used instead of Vec<u8> to save stack space, since they have size of 2 and 3 words respectively.

Implementors§