pub fn be_i8<Input, Error>(input: &mut Input) -> Result<i8, Error>
Expand description
Recognizes a signed 1 byte integer.
Complete version: Returns an error if there is not enough input data.
[Partial version][crate::_topic::partial]: Will return Err(winnow::error::ErrMode::Incomplete(_))
if there is not enough data.
§Example
use winnow::binary::be_i8;
fn parser(s: &mut &[u8]) -> ModalResult<i8> {
be_i8.parse_next(s)
}
assert_eq!(parser.parse_peek(&b"\x00\x03abcefg"[..]), Ok((&b"\x03abcefg"[..], 0x00)));
assert!(parser.parse_peek(&b""[..]).is_err());
use winnow::binary::be_i8;
fn parser(s: &mut Partial<&[u8]>) -> ModalResult<i8> {
be_i8.parse_next(s)
}
assert_eq!(parser.parse_peek(Partial::new(&b"\x00\x01abcd"[..])), Ok((Partial::new(&b"\x01abcd"[..]), 0x00)));
assert_eq!(parser.parse_peek(Partial::new(&b""[..])), Err(ErrMode::Incomplete(Needed::new(1))));