Function winnow::number::be_i16

pub fn be_i16<I, E: ParseError<I>>(input: I) -> IResult<I, i16, E>where
    I: StreamIsPartial + Stream<Token = u8>,
    <I as Stream>::Slice: AsBytes,

Recognizes a big endian signed 2 bytes integer.

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

Partial version: Will return Err(winnow::error::ErrMode::Incomplete(_)) if there is not enough data.

Example

use winnow::number::be_i16;

fn parser(s: &[u8]) -> IResult<&[u8], i16> {
    be_i16.parse_next(s)
}

assert_eq!(parser(&b"\x00\x03abcefg"[..]), Ok((&b"abcefg"[..], 0x0003)));
assert_eq!(parser(&b"\x01"[..]), Err(ErrMode::Backtrack(Error::new(&[0x01][..], ErrorKind::Slice))));

use winnow::number::be_i16;

fn parser(s: Partial<&[u8]>) -> IResult<Partial<&[u8]>, i16> {
      be_i16.parse_next(s)
}

assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"abcd"[..]), 0x0001)));
assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(2))));