binrw 0.15.1

A Rust crate for helping read structs from binary data using ✨macro magic✨
Documentation 
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use binrw::{io::Cursor, BinWrite};

#[test]
fn derive_allows_default() {
    #[derive(BinWrite)]
    struct Test<T>
    where
        T: BinWrite,
        for<'a> T::Args<'a>: Default,
    {
        a: u16,
        b: T,
    }

    let mut result = Vec::new();
    Test::<u8> { a: 0, b: 1 }
        .write_be(&mut Cursor::new(&mut result))
        .unwrap();
    assert_eq!(b"\0\0\x01", &result[..]);
}