write_into

Defines a trait built on top of io::Write to write things into it.

Example

```rust use leb128; use std::{convert, io}; use writeinto::{WriteInto, writeinto};

// https://en.wikipedia.org/wiki/LEB128 struct Leb128(T);

impl WriteInto for Leb128 where // leb128 crate uses u64 and I'm too lazy to write multiple implementations (._.) T: convert::Into { type Output = ();

fn write_into(self, sink: &mut impl io::Write) -> io::Result<Self::Output> {
    leb128::write::unsigned(sink, self.0.into())?;
    Ok(())
}

}

let mut buffer = Vec::new(); write_into(&mut buffer, Leb128(1337u32)).unwrap(); ```