Function nom8::number::u16

pub fn u16<I, E: ParseError<I>, const STREAMING: bool>(
    endian: Endianness
) -> fn(_: I) -> IResult<I, u16, E>where
    I: Slice<RangeFrom<usize>> + InputIter<Item = u8> + InputLength + InputIsStreaming<STREAMING>,

Recognizes an unsigned 2 bytes integer

If the parameter is nom8::number::Endianness::Big, parse a big endian u16 integer, otherwise if nom8::number::Endianness::Little parse a little endian u16 integer.

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

Streaming version: Will return Err(nom8::Err::Incomplete(_)) if there is not enough data.

Example

use nom8::number::u16;

let be_u16 = |s| {
  u16(nom8::number::Endianness::Big)(s)
};

assert_eq!(be_u16(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0003)));
assert_eq!(be_u16(&b"\x01"[..]), Err(Err::Error((&[0x01][..], ErrorKind::Eof))));

let le_u16 = |s| {
  u16(nom8::number::Endianness::Little)(s)
};

assert_eq!(le_u16(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0300)));
assert_eq!(le_u16(&b"\x01"[..]), Err(Err::Error((&[0x01][..], ErrorKind::Eof))));

use nom8::number::u16;

let be_u16 = |s| {
  u16::<_, (_, ErrorKind), true>(nom8::number::Endianness::Big)(s)
};

assert_eq!(be_u16(Streaming(&b"\x00\x03abcefg"[..])), Ok((Streaming(&b"abcefg"[..]), 0x0003)));
assert_eq!(be_u16(Streaming(&b"\x01"[..])), Err(Err::Incomplete(Needed::new(1))));

let le_u16 = |s| {
  u16::<_, (_, ErrorKind), true>(nom8::number::Endianness::Little)(s)
};

assert_eq!(le_u16(Streaming(&b"\x00\x03abcefg"[..])), Ok((Streaming(&b"abcefg"[..]), 0x0300)));
assert_eq!(le_u16(Streaming(&b"\x01"[..])), Err(Err::Incomplete(Needed::new(1))));