# le_u16 in nom::number::complete - Rust
Recognizes a little endian unsigned 2 bytes integer.
Keywords: rust, rustlang, rust-lang, le_u16

# Function nom::number::complete::le_u16

source · [−]

    pub fn le_u16<I, E: ParseError<I>>(input: I) -> IResult<I, u16, E> where
        I: Slice<RangeFrom<usize>> + InputIter<Item = u8> + InputLength,

Expand description

Recognizes a little endian unsigned 2 bytes integer.

Complete version: Returns an error if there is not enough input data.

    use nom::number::complete::le_u16;

    let parser = |s| {
      le_u16(s)
    };

    assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0300)));
    assert_eq!(parser(&b"\x01"[..]), Err(Err::Error((&[0x01][..], ErrorKind::Eof))));