Function `le_f64`

fn le_f64<Input, Error>(input: &mut Input) -> Result<f64, Error>
where
    Input: StreamIsPartial + Stream<Token = u8>,
    Error: ParserError<Input>

Recognizes a little endian 8 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::{error::ErrMode, error::InputError, error::Needed};
# use winnow::prelude::*;
# use winnow::error::Needed::Size;
use winnow::binary::le_f64;

fn parser(s: &mut &[u8]) -> ModalResult<f64> {
      le_f64.parse_next(s)
}

assert_eq!(parser.parse_peek(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x40][..]), Ok((&b""[..], 12.5)));
assert!(parser.parse_peek(&b"abc"[..]).is_err());

# use winnow::{error::ErrMode, error::InputError, error::Needed};
# use winnow::prelude::*;
# use winnow::Partial;
use winnow::binary::le_f64;

fn parser(s: &mut Partial<&[u8]>) -> ModalResult<f64> {
      le_f64.parse_next(s)
}

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