Function to_bytes 

pub fn to_bytes<T: FixedWidth + Serialize>(record: &T) -> Result<Vec<u8>>

Serializes the given type that implements FixedWidth and Serialize to a String.

Example

use serde_derive::Serialize;
use serde;
use fixed_width::{FixedWidth, FieldSet};

#[derive(Serialize)]
struct Record {
    pub name: String,
    pub room: usize,
}

impl FixedWidth for Record {
    fn fields() -> FieldSet {
        FieldSet::Seq(vec![
            FieldSet::new_field(0..4),
            FieldSet::new_field(4..8),
        ])
    }
}

let record = Record { name: "Carl".to_string(), room: 1234 };
let s = fixed_width::to_bytes(&record).unwrap();

assert_eq!(&s, b"Carl1234");