Function be_f32

pub fn be_f32<Input, Error>(input: &mut Input) -> PResult<f32, Error>
where
    Input: StreamIsPartial + Stream<Token = u8>,
    Error: ParserError<Input>,

Recognizes a big endian 4 bytes floating point number.

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_f32;

fn parser(s: &[u8]) -> IResult<&[u8], f32> {
      be_f32.parse_peek(s)
}

assert_eq!(parser(&[0x41, 0x48, 0x00, 0x00][..]), Ok((&b""[..], 12.5)));
assert_eq!(parser(&b"abc"[..]), Err(ErrMode::Backtrack(InputError::new(&b"abc"[..], ErrorKind::Slice))));

use winnow::binary::be_f32;

fn parser(s: Partial<&[u8]>) -> IResult<Partial<&[u8]>, f32> {
      be_f32.parse_peek(s)
}

assert_eq!(parser(Partial::new(&[0x40, 0x29, 0x00, 0x00][..])), Ok((Partial::new(&b""[..]), 2.640625)));
assert_eq!(parser(Partial::new(&[0x01][..])), Err(ErrMode::Incomplete(Needed::new(3))));