Function winnow::number::le_i8

pub fn le_i8<I, E: ParseError<I>>(input: I) -> IResult<I, i8, E>where
    I: StreamIsPartial + Stream<Token = u8>,

Recognizes a signed 1 byte 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::le_i8;

fn parser(s: &[u8]) -> IResult<&[u8], i8> {
      le_i8.parse_next(s)
}

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

use winnow::number::le_i8;

fn parser(s: Partial<&[u8]>) -> IResult<Partial<&[u8]>, i8> {
      le_i8.parse_next(s)
}

assert_eq!(parser(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"\x01abcd"[..]), 0x00)));
assert_eq!(parser(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(1))));