Function nom8::number::f64

pub fn f64<I, E: ParseError<I>, const STREAMING: bool>(
    endian: Endianness
) -> fn(_: I) -> IResult<I, f64, E>where
    I: Slice<RangeFrom<usize>> + InputIter<Item = u8> + InputLength + InputIsStreaming<STREAMING>,

Recognizes an 8 byte floating point number

If the parameter is nom8::number::Endianness::Big, parse a big endian f64 float, otherwise if nom8::number::Endianness::Little parse a little endian f64 float.

Complete version: returns an error if there is not enough input data

Streaming version: Will return Err(nom8::Err::Incomplete(_)) if there is not enough data.

Example

use nom8::number::f64;

let be_f64 = |s| {
  f64(nom8::number::Endianness::Big)(s)
};

assert_eq!(be_f64(&[0x40, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00][..]), Ok((&b""[..], 12.5)));
assert_eq!(be_f64(&b"abc"[..]), Err(Err::Error((&b"abc"[..], ErrorKind::Eof))));

let le_f64 = |s| {
  f64(nom8::number::Endianness::Little)(s)
};

assert_eq!(le_f64(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x40][..]), Ok((&b""[..], 12.5)));
assert_eq!(le_f64(&b"abc"[..]), Err(Err::Error((&b"abc"[..], ErrorKind::Eof))));

use nom8::number::f64;

let be_f64 = |s| {
  f64::<_, (_, ErrorKind), true>(nom8::number::Endianness::Big)(s)
};

assert_eq!(be_f64(Streaming(&[0x40, 0x29, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00][..])), Ok((Streaming(&b""[..]), 12.5)));
assert_eq!(be_f64(Streaming(&b"abc"[..])), Err(Err::Incomplete(Needed::new(5))));

let le_f64 = |s| {
  f64::<_, (_, ErrorKind), true>(nom8::number::Endianness::Little)(s)
};

assert_eq!(le_f64(Streaming(&[0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x29, 0x40][..])), Ok((Streaming(&b""[..]), 12.5)));
assert_eq!(le_f64(Streaming(&b"abc"[..])), Err(Err::Incomplete(Needed::new(5))));