Function winnow::number::le_f64

pub fn le_f64<I, E: ParseError<I>>(input: I) -> IResult<I, f64, E>where
    I: StreamIsPartial + Stream<Token = u8>,
    <I as Stream>::Slice: AsBytes,

Recognizes a little endian 8 bytes floating point number.

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_f64;

let parser = |s| {
  le_f64(s)
};

assert_eq!(parser(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x40][..]), Ok((&b""[..], 12.5)));
assert_eq!(parser(&b"abc"[..]), Err(ErrMode::Backtrack(Error::new(&b"abc"[..], ErrorKind::Eof))));

use winnow::number::le_f64;

let parser = |s| {
  le_f64::<_, Error<_>>(s)
};

assert_eq!(parser(Partial::new(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x48, 0x41][..])), Ok((Partial::new(&b""[..]), 3145728.0)));
assert_eq!(parser(Partial::new(&[0x01][..])), Err(ErrMode::Incomplete(Needed::new(7))));